The Truth About Invasive Species | SciShow Compilation

[@ledumpsterfire6474]

Interesting about worms. I knew hardly any of that. The place I always bought bait from for fishing stopped selling the regular earthworms you get, and got a local supplier of native worms, which were fairly pricey. All the cashier could say was, "I guess they're bad for the environment." Couldn't elaborate more than that. I thought they were being totally ridiculous, like it was a real life example of green-washing. Evidently the owner was paying more attention than I was.

[@alyssam8550]

I've noticed that all of the scishow compilations get recommended a lot more by ~the algorithm~ lately. I imagine it's because the length is favorable at the moment. You guys are killing it right now the videos have been better than they've been in years imo.

[@Joy1957K]

Totally agree. I get uninterested because of the length. It just waffles on.

[@cornbreadfedkirkpatrick9647]

Go algorithm

[@Painted_Owl]

I’m here for it 🔥

[@ediciusxp]

Same here

[@victoriaeads6126]

Foolishness. The algorithm is only about making KZbin money through advertising. Your attention span is irrelevant.

[@raeperonneau4941]

Collecting and killing cane toads is a sport in Queensland. They are everywhere (like the cover the road at night), super destructive, and unbelievably loud.

[@azmanabdula]

Havent crows been eating them? Flipping them over and ripping out their innards

[@Auradyme]

@@azmanabdula Never seen a crow go after one, wouldn't want to either with their poisons

[@azmanabdula]

@@Auradyme Yeah I was right These clever birds have learnt to roll the toads onto their backs, sometimes doing so repeatedly if the luckless toad tries to hop away. Crows know which bits to eat - fleshy thighs, tongues, intestines - and how to get at these from below without contacting the lethal parts Discovered behaviour and confirmed 29 Jan 2018 -googles

[@azmanabdula]

@@Auradyme So basically French crows are having a feast Hon Hon Hon *Taking a visit to Australia for an "all you can eat" buffet*

[@raeperonneau4941]

@@azmanabdula Not enough of them. Lol

[@Empireo-]

There is invasive Hippos in Bolivia that Pablo Escobar raised in a zoo, but after his death, they run to the rivers and now are close to the amazon rainflorest. it's a great history to you guys cover.

[@davidmoak1219]

Damn hippos in the Amazon. Coz it's not scary enough lol.

[@entity107]

You forgot the best part their called Cocaine hippos

[@shlokjibhakate7998]

And escobars family runs a cell phone compaine which is a scam now😂

[@pumpkin6529]

I was today years old when I learned about this, I always thought that worms were just everywhere. And I grew up with people saying they are good and say that worms are normal in every place that has dirt.

[@darthcravus]

Calling the earthworm a distructive invasive species is rich coming from a member of the most distructive invasive species our own

[@shinyarchen_39]

“Australia’s poster child for invasive species” is a title with a worrying amount of contenders.

[@craftypam9992]

Aah, Hank, don't feel old because you can remember The Trouble with Tribbles. I'm at least 20 years older than you (maybe 30!), and I remember it!

[@anyascelticcreations]

I remember it, too. I used to watch the original Star Trek every day after school. I think they were reruns by then, but still. I think Hank is about 40 now, though. He just doesn't look like it.

[@JohnDrummondPhoto]

"Scotty! You didn't beam them into space!?" "Why no, Captain! That would be cruel! I beamed them into the Vulcan ship's cargo bay. Where they'll be no Tribble at all."

[@brittneystreeter493]

@@anyascelticcreations 41…but he has good genes he looks much younger!

[@anyascelticcreations]

@@brittneystreeter493 Thanks! The video I watched that mentioned his age must have been from a year ago. Yes, he must have good genes! I think the never ending imterest in science stuff helps! Just look at David Attenborrough. Still curious as a kid at 95!

[@johndavis6119]

Old? I saw it first run.

[@tristanmisja]

Torresian crows can also eat cane toads, but instead of being resistant to the poison, they learned to flip the toads on their back, so they can eat their insides from the belly, which isn't poisonous.

[@iwillsmiteyall]

I am impressed and horrified at the same time oh my god

[@olliert4840]

That is such a crow thing to do

[@trishapellis]

Thanks for putting 'compilation' in the title right away! Have a comment for the KZbin algorithm.

[@ch3-cd-ch325]

we've got hogweed here in New Zealand and it ends up helping native forest more then hindering, most of the NZ native tree have a long growth period so need lots of shelter when they're young, so hogweed bunching up with their big leaves makes it dream for natives to grow and eventually take over i grew up on a farm and there was a hillside covered in hogweed (though we called it whack-burn because you whack it and you get burns) and about 10 years later and there's no hogweed, just thick native bush

[@wongchoonhoy1693]

AW

[@RavenMeer]

I was wondering if we had it here. Now I know. Thanks.

[@ch3-cd-ch325]

@@RavenMeer I've only ever seen it in banks peninsula, and the west coast so can't confirm if it's anywhere else

[@AJPemberton]

@@ch3-cd-ch325 I planted seed from a wild one down here in Dunedin - before I knew the toxins it had. The bees and other insects loved the flowers! Had over 10 crawling over just one inflorescence one summer day. Removed now, but they are definitely growing wild in Otago.

[@paulburley7993]

Recently it has literally EXPLODED and grows everywhere here in my part of Southern Ontario 🇨🇦 We call it wild parsnip.Another horrible plant is "dog strangler" and grow all through our meadows and woods. They're awful. Loosestrife increases every year. Another absolutely awful plant is a tall "pampas plume" type plant that out compete our beautiful bulrushes. None of these plants grew in my area when I was a kid playing in the woods.

[@m1herrmann160]

25:23 "two crabs enter, one crab leaves" the expression and how ya said it! Awesome! Lol

[@robertgriffin6049]

The Corvid's in Australia have now learned to remove the poisonous parts of cane toads before they eat them...

[@lloydfromfar]

Murder! :p

[@robertgriffin6049]

@@lloydfromfar :)

[@iriandia]

Of course they have! Well done, nerds of the bird world.

[@cameronkeoughmathematics6422]

They’re as clever as a 6 year old

[@DES.REVER.DESIGNS]

Clever girl

[@traveler804]

lmao..dunno how old you are Hank, but I'm 41 and have been enjoying SciShow for about 10 years.. keep up the good work y'all

[@JoelReid]

Interestingly Cane toads have other indigenous predators that have adapted. Two come to mind that use intelligence. Both species i will mention seem to teach a learned behaviour to offspring, making it even more interesting. It is based upon the toxins on a cane toad being produced on the top of the toad, not the underside. Marsupial river rats in the Kimberley will disable the toad by flipping it over, then uses a large claw to create a surgical slit in the belly to extract the liver, which it likes to eat... the problem is that the marsupial water rat only likes large toads, because they have large livers. thus the toads are slowly being naturally selected to be smaller. Marsupials rats tend to teach their offspring as they raise their offspring with them as they hunt. The Australian Raven also uses intelligence to hunt toads. They once again flip them over and then eat them from the underside. As the Australian Raven lives in organised family groups, then this quickly spreads amongst family groups as a predatory style.

[@madcoda]

Invasive species from Europe threatening American locals? I think I heard that before…

[@shlokjibhakate7998]

Lol😂

[@leyio7453]

Nature at it's finest. If only we were not so human and havnt let them live to tell the tale..

[@bunnyben5607]

Actually now it's an Asian species which is the invader, another parallel.

[@ViragoRiver]

They concepts have similar racist, xenophobic and eurocentric roots. Invasion ecology is a pseudoscience. And ecological nativism is ecofascism.

[@rashadhunter4253]

😆

[@estergrant6713]

omg trouble with tribles is a TOS must watch in addition its sister episode “trials and tribblations” from ds9 some of the best trek out there id be remiss not to mention the TOS episode “balance of terror” when talking about best star trek of all time, many may dissagree but i truly believe that is the best TOS episode and definitely is a must watch

[@redchic]

We have the giant hog weed here where I live in Oregon. I remember seeing it first appear about 18 years ago, seeing this huge weed, and thinking the next version of Scotch broom has arrived. And it has. It doesn't spread quite as fast, but still incredibly fast, but it's a much meaner plant.

[@mathsinger]

Fifty years ago I worked for veterinarians in Miami, Florida. We had lots of dogs come in after chewing on cane toads. The story I heard was that they were imported to be used in scientific experiments, and pregnancy tests. Someone dropped a crate of them at the Miami airport in the 1950s.

[@cathipalmer8217]

Jeff Goldblum: Life always finds a way. Marbled crayfish: Huh. Okay...

[@veigasterre5531]

"You're not old like me" had me 😂😂😂

[@Brunnen_Gee]

As someone who's been in the aquarium hobby for quite a long time, and also an avid angler, I'm quite familiar with invasive species and the damage they can do. It's part of the hobbies if you get very far into them. I've also owned a couple self-cloning crayfish (what we call them in the hobby), and was already familiar with their origin. Sadly I never got them to the point of reproduction, they managed to escape and die outside of their tanks. In my experience, the term "invasive species" has always been used specifically regarding a non-native species that was detrimental to the environment it was introduced to. I've never heard invasive species used when talking about an organism that wasn't detrimental. It does get incorrectly used in other ways though. Angling is an area where this commonly happens. Many people consider fish they don't like, "trash fish" and such, invasive simply because they aren't the fish they like. Gar fall victim to this a lot. Many people consider them invasive in a lot of places, even though they're native and have been there longer than humans have.

[@dddkll]

I was wondering about the use of the term invasive in that last section. I’ve always understood “invasive” to mean harmful to the local ecosystem and “introduced” or “established” to mean nonnative but not harmful. This is a distinction that’s frequently overlooked in the gardening hobby, where any rapidly spreading (and undesired) plant may be called invasive regardless of its place of origin, and it is one of my biggest pet peeves and a huge hindrance to getting reliable information. I guess I’ll have to look further into the scientific definition of invasive because this video has decreased my confidence in my understanding of the term.

[@Hubris21]

Another really cool story of an invasive species are the Judas guitars goats of the Galapagos or 'Project Isabela'. Basically goats in the Galapagos were obliterating the habitat and endangering other native species. So Project Isabela had one goal: 100% eradication. But as the managers told it, the last 5%of the first population took as much effort as the first 95%. As remote a the islands were, it was difficult to get resources out there to hunt the goats and the most efficient way was hunting them in a helicopter. But as their population dwindled and the vegetation returned, the goats got smart and hid when they heard the helicopters. Enter the Judas goat. A female goat was captured, sterilized, tagged with a GPS and infected with hormones to permanently put them in heat and make them irresistibly attract other goats. The Judas goats lived up to their name, condemning many of their fellows and leading to total eradication on most islands. Those that remain are mostly protected for political reasons.

[@shante3]

I’d love videos from you guys about the body and diet. What happens in your body when you eat certain foods like sugar or carbs, how insulin resistance works, what consuming apple cider vinegar does to your body, etc. Lots of sources explain what foods do, but few explain HOW.

[@jayteilhet7516]

I recently dug a trench for an ethernet cable, now I feel like an ass for saving all the earth worms I found

[@imdarrel]

It's the thought that counts lol

[@vonschweringen8321]

Do you fish? They're excellent bait.

[@DasAntiNaziBroetchen]

I think you did just fine. "Invasive species" is a human concept.

[@mrjoe332]

@@DasAntiNaziBroetchen haven't you just watched this half an hour video explaining why invasive species are a huge problem?

[@modestoca25]

@@mrjoe332 Humans are an invasive species along with their farm animals and pets, grow up.

[@coeal2680]

I always wanted a Marble. They are pretty, and reproduce easily. Only, they reproduce too easily. I thought "hey, my 2 oscars can easily handle all those yummy snacks". Then heard stories of entire cichlid farms, having the same idea, being overwhelmed. Nohoho thank you

[@ethanlin9925]

Marbles reproduce easily, but they do reproduce quite slowly

[@nenmaster5218]

@@ethanlin9925 I LOVE recommending science-youtubers to people in c-sections under science-youtubers!! May I? Or is this too random?

[@ethanlin9925]

@@nenmaster5218 um sure

[@nenmaster5218]

@@ethanlin9925 Thats the Spirit! "Um... sure... if i have to..." is the EXACT Mindset i got married with!! Haha, jokes aside, here you go: Try Sci Man Dan, Oversimplified, Illumainghtii, Neil Red, Veritasium, and maybe Sir Sic. And then you later tell me which you liked and if you want also in what 'direction' the next recommendations should go (the mentioned channel are all fun but not the same kind of fun)! IF you want more, that is.

[@1.4142]

When you go out to nature but realize many of the plants are actually invasive.

[@JohnDrummondPhoto]

So many invasive species Americans take for granted: pigeons, starlings, house sparrows, kudzu, water hyacinths, purple loosetrife, nutria, Norway rats, house mice, Japanese beetles, Asian ladybugs, mute swans, Ailanthus trees, etc. Our natural landscape would be totally different without these and so many other species, many of which have only been here a century or so.

[@AnnoyingNewslettersPage6]

Let's not forget James Cook bringing stowaway mosquitoes to Hawaii.

[@JohnDrummondPhoto]

@@AnnoyingNewslettersPage6 bad as mosquitos are, the goats and sheep that Captains Cook and Vancouver brought to the islands were probably far worse to the native ecology.

[@AnnoyingNewslettersPage6]

I'm sure that's ecologically terrible, but there was a tropical paradise without mosquitoes, until Cook ruined it. Moral of the story: Captain Cook is why we can't have nice things ☠️

[@nenmaster5218]

...I LOVE recommending science-youtubers to people in c-sections under science-youtubers!! ?

[@sly-fi6502]

If it weren't for them it'd be like how it was supposed to be. You forgot cats.

[@09Dragonite]

God I love Hank 😂😂😂 "and then kill it! Right there in the store"

[@dumbgames4933]

Hank, that episode is a classic, so you're in good company in referencing it, hahah. And they're a heckuva lot more adorable than crayfish!

[@anniejuan1817]

At 8:15, some of the photos of the hand affected by hogweed... have a fabric background with what looks like an illustration of hogweed on it. Ironic.

[@irimac1806]

Here in germany the gian hogweed has to be destroyed by ppl wearing hazmatsuits and with flamethrowers thats how bad it is o_o

[@eastdakota6954]

Hank, why do you have worms dying in your office

[@evilchicken17]

And the worst thing is that the cane toads didn't even eat the sugar cane beetles!

[@isidoreaerys8745]

23:00 the southwestern Willow Flycatcher is my Favorite bird. They migrate through Las Vegas where I live and they are very friendly and just as fat and adorable in person. They’re super lively and hop around cheerily and play with one another. They aren’t afraid of humans and don’t mind hanging around you when you are gardening or relaxing outdoors.

[@unseamingstew0185]

Imagine the sailor who was supposed to watch the rabbits and left the cage unlocked.

[@estergrant6713]

love the quantity of tribble references in this compilation

[@craigmooring2091]

The rabbit & cat problem of Macquarrie Island is still present in Australia. The larger the area affected, the harder the problem is to control.

[@budgetcoinhunter]

Don't be a bigot! Don't you know that diversity is wildlife's strength? Why would you deny species the right to life in a better environment for them? Who cares if a few small marsupials in Australia get eaten by feral cats, or a few trees get sucked dry by new insects? it's just the price we pay for more vibrant spaces.

[@Alyenbird]

Another example... The Broadleaf Plaintain (Plantago major) is a little, low-growing plant introduced from Europe. It is condered to be a pesky weed in North America. However, it has has been discovered that the caterpillars of the endangered Taylor's Checkerspot Butterfly (Euphydryas editha taylori) readily eat, grow, and thrive on this weed. Which is good, because some of the native plants the Butterflies once relied on aren't doing so well either.

[@kevinwagenknecht6330]

Lol Hanks not old. That was one of my favorite star trek show.

[@XenaThreat]

I can't hear the word earthworm without thinking about earthworm jim

[@Lyssebabz]

We have loads of giant hogweed in Denmark. I was once told it came from Spain. Back in the 50s, 60s and so on. Travelling by car was very popular. Most ordinary Danes could take a week vacation in Spain, Italy etc. Those who went to Spain, they found hogweed and brought it home due to it being big and pretty

[@Lyssebabz]

When I was barely 10 years old, I rode my bike I to a ditch having these giant hogweed. I was lucky, only one arm was affected. I still have scars to this day 14 years later

[@blixten2928]

And now us Swedes are taught to fight this "invasive plant from Denmark". One wonders who first brought it to the Mediterranean....

[@paulburley7993]

Giant Hogsweed is native to south-west Asia. It has spread to North America too. Recently in parts of Southern Ontario and Quebec it has literally EXPLODED and grows everywhere!! We call it wild parsnip. 🇨🇦

[@twocvbloke]

I dunno, self-cloning crayfish sounds handy for a food source, assuming they don't taste like number two... :P

[@Salafrance]

Zero advantage over regular reproduction (you know they're not created fully formed in a cloning vat, right?). Plus, sexual reproduction means that genes spread more widely throughout the population and your crayfish don't end up stuck in a local fitness maximum. That's why sexual reproduction is a thing.

[@sly-fi6502]

@@Salafrance They can still reproduce sexually if they wanted to right? If so then they hit the reproduction lottery.

[@danuttall]

Meat ants aren't the only native Australian that can eat the cane toads. The tiapan, one of the most venomous snakes in the world, is one of the few snakes that can chow down on the toads, but there a lot more toads than there are snakes.

[@MossyMozart]

@David Nuttall - Here's hoping that you wind up with really fat snakes.

[@randomations11]

I'm from NY and have seen giant hogweed my whole life, never knew they were invasive and certainly never knew that the sap is caustic!

[@ALifeLearned]

OMG hearing about giant hogweed on here is such an experience as someone who was victim to getting the sap on them in direct sunlight as a teen while having NO IDEA about their impacts... next thing I know I have burns that look like I spilled grease on myself and am insanely confounded as to why lol

[@adriengriffon]

As someone who enjoys a good crawfish boil, having some that reproduce quickly sounds great.

[@xavlamou4401]

Destroying ecosystems one meal at a time

[@lgerweck]

Invasive species are a big problem in the Great Lakes region. We currently have one of the world’s most successful invasive species control programs in place for sea lamprey.

[@ariadgaia5932]

I have an extreme Latex allergy... and carrots are listed as one of the moderate food allergy risks linked to Latex allergy. I wonder if the furanocoumarins that cause phytophotodermatitis contributes anything to the internal allergic reactions I experience..

[@MrZooop]

cane toads- when i was in florida i knew a family who's dog would search them out and eat them. the first time the dog got super sick, but after that the theory was he was getting stoned on them (bufotoxin can be a psychedelic.).

[@lewsouth1539]

At the mention of "an oversized invasive carrot", I couldn't help but be reminded of *The Thing from Another World.*

[@feralbluee]

in the early ‘50’s in northern Westchester County, in the middle of lots of woods, just north of NYC, we had worms all over the place. you could tell it was Spring cause of all the little mounds of dirt. these were smaller worms than the big ones you’ve shown. but we definitely had worms. i always picked them up from the driveway after the rain, cause they got squished. :) so are you talking about these big ones? is their digestive chemistry different? thanks. interesting show. :) 🪱🌿🌹🌱

[@ashwee9053]

The worms you were interacting with were also invasive. There have been worms in the northeast for hundreds of years now, but none of them are native species, native meaning they evolved in and with the environment. All introduced.

[@Tasoq]

As an Aussie, I saw "invasive species" and instantly thought of the cane toad lol

[@CoryWipke]

You didn't mention Snake Island or Ilha da Queimada Grande, home to the Golden Lancehead vipers. The most dangerous island in the world AFAIK. No one's allowed there without special permission. The snakes have no predators and have taken over the island. I think there is or used to be a lighthouse there and the two people that manned it disappeared. The venom of the snakes, which is also golden, is so caustic it literally melts your skin.

[@jweber018]

The Return of the Giant Hogweed playing in my head for the whole second clip, anyone else?

[@nenmaster5218]

I LOVE recommending science-youtubers to people in c-sections under science-youtubers!! May I? Or is this too random?

[@AriCircuit]

@@nenmaster5218 booo go away

[@sevrono]

where i live giant hogweed is still pretty uncommon, but oh boy is there a tonne of Queen Anne's Lace. though the big invasive plant in my city that surprised me is the russian olive, they are everywhere in my canadian city

[@Shaden0040]

Lets hope the invasive worm will eat the seeds of the hogweed.

[@Jynxedlove]

I live in the NW and am looking into raising sheep. I expressed to the person I am getting seeds for the pasture from that I wanted a seed bag without invasive species, but he insisted that there were some that we should have, but that it could be done in an environmental way. I had him explain, and among other things, it turns out some non-native species mixed in with the native ones means that the native plants won't risk being overrun by invasive species outside our property, helps to maintain soil composition, and that the invasive grasses chosen are chosen because they do not spread easily and are at a low risk of propagating outside our fields. Some of them are even modified so that they don't seed at all, while the native grasses are kept unmodified.

[@nankerphelge3771]

The concept that many "biological purists" forget is that species migrated without human assistance for eons. I have heard prairie specialists say that they wouldn't plant grasses from another part of the state because it would mess with the local gene pool. This is in a state where 95% of the terrain has been turned to monoculture farmland. Seeds from prairie plants traveled hundreds, if not thousands, of miles in the coats and digestive tracts of birds and roaming herds of herbivores for thousands of years.

[@victoriaeads6126]

22:35 there is honeysuckle, and then there is Japanese honeysuckle. The image shown in the segment is Lonicera, which is a native North American plant. The honeysuckle most consider invasive is the Japanese honeysuckle. It is one of the few plants, like Ailanthus altissima (that is NOT a heavenly tree in North America), that are on my YOU WILL NOT PASS list. Multiflora Rosa is another. Those are really the three worst in terms of aggressive invasive plants around me. There are others, but those are the most problematic, and as this video clearly shows, there is only so much to be done. Trying to reduce the effects of the worst bad actors is the most practical course.

[@sazji]

Japanese honeysuckle is also a Lonicera. It's just a non-native Lonicera.

[@cantaloupix9753]

Ooh, I love the new intro

[@JonalynH]

I smell’s awfull in the willamette valley it’s everywhere. OMG this video just solved a huge issue my daughter has, she’s get in the sun and she’s in pain with in minutes rashes, and blisters. At first we thought she ghostly white and like gets sunburns really fast, but this continued to be an issue even with SPF she would be in pain to the point we stoped going to the beach and out door swimming she would even need to cover the mini van windows. Texted her doctor about hog weed we grew up with it around because I grew up a little bit wild. Anyways because it’s not a normal plant here they didn’t test her for that allergy, she is now with an epi-pen and a new allergy to list on doctors forms. 🙏 Thank you she won’t have to suffer too much more.

[@aptorres01]

Great video

[@floruhls9418]

10:57 My mind immediately jumped to that vine "The feminists are taking over! I'm an adult virgin!" set to the Ghostbusters theme song

[@idadood2278]

Oh wow, a new SciShow intro.

[@danielmalone4446]

what a trip someone just told me a few weeks ago earth worms were invasive and now scishow puts a video out about it.

[@jayambrose9998]

Ayy notification squad!

[@snazzymcnazmy]

Gang gang

[@cluntisyoi6256]

Pog

[@GreenPoint_one]

🟢

[@nurpechbeimspielen3139]

@@cluntisyoi6256 Pog *translate to english* Ch

[@Keallei]

Ayyy. The likes are at 123 and I don’t want to break it. 😂

[@PandaemoniumGaming]

I always enjoy these compilations 😄

[@sly-fi6502]

I wish a bigger emphasis was put on how invasive cats are, they're the world's #1 invasive species. They've done far more damage than any species on this list and we have people here trying to protect them instead of the native wildlife. They hunt anything that smaller than them. Each cat kills hundreds of amphibians, birds, insects, and lizards every year and that affects so many aspects of our environment, even the owned and fed outdoor cats hunt like this. Wherever there's several outdoor cats there's a huge spike in fleas, neighborhoods are infested with them and we have to resort to pesticides to keep that in check. We need a government program to intervene and harsher fines for people that release and support outdoor cats + education on the matter so people stop getting upset over the idea of controlling the population. Catch neuter release is proven to be non-effective. Toxoplasmosis is rampant because cat poo is everywhere. Keeping cats outdoors is also very dangerous for the cat. I get why people want to protect them but we all need to look at the big picture and videos like this need to talk about it more even if it's controversial. Rant over.

[@foxyrider7840]

Yep. The animal activists need to realize this is a huge problem for all of us

[@OffRampTourist]

Agree. But don't see it changing.

[@kenneth9874]

Cats are indeed a plague, the number of songbirds for one has been drastically reduced due to them

[@brynadoodle]

Love your vids and the wonderful array of education you provide. I’ve loved seeing how science and Scisgow has evolved!!! Keep being awesome!!!!!

[@TRDPaul]

Horses aren't an invasive species because they were they native, went locally extinct and were then reintroduced which is probably why they didn't have a negative effect on the environment and I bet there were other positives not mentioned in this video, it's similar to when wolves were reintroduced to Yellow Stone and greatly improved the area

[@thekaxmax]

true only in America. They're invasive here.

[@bobwatson8754]

Different equine species, iirc. Same genus.

[@rjs4176]

When Organisms Invade. Literally just the entire history of Earth explained in three words.

[@NatsAstrea]

at least since humans started getting too busy and uppity for our own good.

[@RedRose-id4sd]

Wow, I learned so much and this has changed my opinion of earth worms.

[@AykevanLaethem]

6:20 I learned not to ever touch giant hogweed as a child. It's common enough around here (NL) to run into it. It does look kinda nice from a distance though.

[@matttube9369]

6:40 "it's one plant you dont wanna mess with" I thought I'd never hear this LMAO

[@paulbennett7021]

Yes, Genesis fans, the lyrics of 'Hogweed' are surprisingly accurate.

[@thesilentone4024]

You should talk about invasive trees and there effects on the soil and water in the soil.

[@jbird-sweets]

It’s time to update this! Native peoples have been saying forever that they had horses before colonists arrived, and that has now been backed up scientifically, though they should’ve just been believed. The take that they’re beneficial because they “helped us settle areas faster” also really sucks, us colonization isn’t some miracle, it was criminal.

[@brandonmckinnon836]

Great vid! But the caption about third degree burns from hog weed seems inaccurate. None of the photos showed charring or full thickness skin damage. 1st degree or 2 degree chemical burns perhaps but the photos didn’t indicate 3degree burns which would damage the subQ and muscle. 🤔

[@Margoth195]

10:10 you're not the boss of me! my plant biology degree says otherwise lol (seriously that plant is a blight! I'm glad you are spreading the word!!!)

[@antoniussugianto7973]

Please videos about giant gippsland earthworm...

[@Shadowfromsonicadventure2]

This makes me wonder if that wild animals think us as invasive species. When we deforest do the wild animals think we're invasive species? Guess we never know.

[@haileywilson5774]

“Which happens to me like three times a week🤷🏽” 🤣

[@gizmogadget1151]

Awsome vid guys keep it up

[@kaceesavage]

We have a lot of giant hogweed in Wisconsin. Our neighbor has a Big patch and I end up cutting every one I see off our driveway.

[@nenmaster5218]

I LOVE recommending science-youtubers to people in c-sections under science-youtubers!! May I? Or is this too random?

[@kaceesavage]

@@nenmaster5218 ok sure, but I would prefer some recommendations on how to get rid of this giant hogweed. 😄

[@nenmaster5218]

@@kaceesavage About the hogweed, i only have the wise, wise words of a wiseman to offer: "K-LL IT! K-LL IT WITH FIRE!!"

[@nenmaster5218]

@@kaceesavage As my grandma used to say 'Honey, no problem cant be solve with some Dynamite', but lets get to the recommendations already: Try Sci Man Dan, Oversimplified, Neil Red, and Zoo Tier, and then come back for more if i have sucesfully proven my rich recommendation-reserve. Come back later!

[@tinapetrovicz9741]

@@kaceesavage Cutting it down before it seeds, can stop it, but it takes years. And you must take a lot of precautions, goggles, facemasks, those disposible white overalls, covers for your footwear and long gloves. Be careful to clean the tools (your weed wacker) and any surface that they touch, because the sap can spread. Some people use plastic for the plants to fall on and wrap the plants to dispose them. Some people burn them but read up on it, as I have heard the smoke can be very irritating. We have a lot of here in Ontario Canada. It has been a battle for muncipalities where they take over parks and boat launches. There are government online information pages that you can access here, that have more information.

[@Nil_25k]

I like how hank is the most popular person on this channel

[@09Dragonite]

Tbh, I love the whole team

[@JoelReid]

Invasive species can be good. the best example is in Australia. When Europeans introduced cattle and sheep to Australia there was a problem becasue the indigenous dung beetles were used to marsupial faeces, which are hard. but cattle and sheep have wet faeces, which the indigenous species couldnt do anything with. This was a serious issue as the faeces bred flies, and thus flies became a serious problem in Western Australia, generating fly plagues. Australian scientists then spent years researching the best African dung beetles to import that would not affect the ecosystem. After decades of research and careful management and testing they introduced three, then five species into the wild... successfully solving the problem with no known negative impacts. Even to this day Australian scientists monitor the dung beetles as they spread across the country... still being a success of science done right. It was so successful, New Zealand is in the midst of its own research to do the same, using similar methods, but adapting for the different ecosystem.

[@Eli-zx2rg]

The giant hogweed is also in canada. I know we had it all over the Ottawa news back in the mid 2000's. My dad was terrified of all flowers that kinda looked like the hogweed and if we saw some he would go out in a beekeeper suit and gloves and pull it he'd burn it in a barrel on the other side of the farm. We never actually got any hogweed, but he wanted to be extra careful.

[@Articulate99]

Always interesting, thank you.

[@bunnyben5607]

So basically many of the "beneficial" invasive species are beneficial because they take up roles previously destroyed by changes in land usage induced by human settlement.

[@TheTonyMcD]

6:43 Ah, the town of Ganja. Such good memories at that place.

[@FeeshUnofficial]

They call Giant Hogweed "bear claw" in Dutch. They're a massive issue

[@thisbagisnotatoy9639]

If you’re composting, seek out Red Wigglers- Nightcrawlers won’t do what you need them to for vermicomposting. The book Grow Your Soil has great information on different composting methods

[@karencrawford4068]

Shell fish! Good one, Stephen!

[@marisanya]

The European Green Crab really is the most macho crab

[@unculturedweeb4240]

Sounds like that guy could've had his own all you can eat mini lobster tails if he played his cards right.

[@elielmachado]

A giant bred a family and now it's eating all the kids

[@capsfederation3154]

Dude i seen a jumping worm this summer up here in Alaska. I thought it was normal worm habits

[@hainesjw]

The tamarisk’s other name, salt cedar, will help you understand the other problem with these plants in the western US, where soils are often already alkaline and salty. This plant pushes it even farther, making a visible death zone around it for other plants.

[@mamanoneyall51]

Rikki tikki tavi, loved that as child.

[@eloise2686]

Interesting came toad developments!! Some ibis’s in Queensland have figured out to take them to rivers and use the ‘stress and wash’ technique to get all their toxins out, then they’re safe for them to eat !

[@samurban9782]

I will say, non-native species are more on an invasive spectrum. Like earthworms, honey bees, and apple trees are non-native but do not exhibit many invasive traits. Whereas, honeysuckle, Japanese beetles, etc. exhibit many invasive traits.

[@sabrinamorrison7628]

The horses in Washington are wreking the plant life on the Yakama Nation. They are also becoming unhealthy so people dont realy want them as much. They're also over populated due to it being illegal to hunt them.