5 Most Dangerous Invasive Species in the World

[@anmolgwala2915]

There is also a yoink guy yoinking pythons

[@SonOfVulkan]

Lol.. look, it's a tokay gecko ... yoink.. makes me smile everytime

[@Spaltyslife]

He is just looking for the 20 footer😂

[@ngcf4238]

This swamp puppy is huge! He seems to like looking at my foot. The bugs are crazy out tonight *turns on flaslight* *dark void of mosquitos*

[@phoenixgaming20]

BOOP

[@AubreyCasler-c3p]

He is the worst invasive species

[@caedenwarford]

@Forrest What about armored catfish/plecos and zebra muscles? Feral hogs as well? In the southern USA these animals wreak havoc. Long time fan. You are one of my hero’s. What you do for conservation will change the planet. Finding lost species, raising awareness for those that need protection. You are the voice for these animals and we all thank you for doing everything you do.

[@jamesh7469]

Zebra mussels are the #1 problem species in america. Decimating Great Lakes ecosystems to the tune of 90% reduction across all fish stocks, and costing > $5 billion across the US annually in maintenance and broken infrastructure costs due to the mussels gumming up pipes and intake grates

[@scottmitchell1884]

You forgot Snakehead Fish

[@thefloridaredneck]

The Hillsborough river in Pasco county florida is absolutely filled with them. Zero fish other than the.

[@benmcreynolds8581]

The Cane toad situation pisses me off so much because they're destroying so many unique one of a kind, only found there species. Just to be replaced by millions of toxic toads. Even their eggs kill creatures. Australia has such awful issues with invasive animals

[@orenkeithley5324]

Yeah and genetically enhancing some to fight back seems like a bad idea

[@1legend517]

​@@orenkeithley5324How is that a bad idea? I think it's a good idea. The more species that are able to consume them the higher the chance of controlling them and preventing extinction of thousands of native animals.

[@orenkeithley5324]

@@1legend517 cause it never goes as planned and you'll prolly create an even worse disaster

[@1legend517]

@@orenkeithley5324 How do you know it never goes to plan? They've never actually done it before.

[@sadmermaid]

Can they be sterilized genetically?

[@RavveDavve]

Definitely would LOVE to see a part 2! Thank you 🎉

[@Edward-r5h3i]

Man I wish this guy was my teacher. He’d be an awesome teacher!!! He explains things with excitement. Not boring that’s for sure. 😂

[@Zarjio]

Burmese Pythons have been found in Florida since the 1970s. Although a breeding facility was destroyed by Hurricane Andrew, the problem stretches back much further than that, and it really comes down to irresponsible pet ownership.

[@sleepyeye9237]

Ya I was thinking what about all the iguana and tokay and tons of invasive fish. There’s gotta be something more then a breeding facility

[@rothed16]

It just dumped a larger amount making it harder for native species to wipe it out

[@KriusAerion]

2-6 burms released a year staggered would not allow them to thrive in the wild. Andrew was another story because multiple breeding pairs were released in a small area allowing for a population to take hold.

[@johnnymorgan6711]

If you go watch Joe rogans podcast with the python cowboy. He talks about that facility never existed. The problem all started from the illegal pet trade and how Florida is stopping the removal of some of the snakes in certain places.

[@TheToxicP]

Which is why no State should allow exotics. Exotics should be banned at the National level, outside of Zoo's and legitimate sanctuary's.

[@Luvagoodsandwitch]

As a wildlife warrior from Australia 🇦🇺 I don’t feel picked on 😂. I’m glad to see it brought to light beyond Australia. Keep up the great work.

[@SevenGC89]

Damn Starfish out here killing all the Carl's out there, RIP Carl

[@AubreyCasler-c3p]

I have a friend named Carl, stay clear of starfish bud

[@dillonforte124]

No! Not Carl! Justice for Carl! War on starfish!

[@Chasing.Butterflies]

When I heard that I was like holy crap you can really tell he's from South Africa when he says Carl Reef

[@sweeney.family]

Justice for Carl!!!!

[@joshuawales-smith7903]

@@Chasing.ButterfliesZimbabwe not SA

[@Nick-Lab]

Made me think of The Walking Dead lol

[@serfandterf]

Carl and algu

[@TedSallisakaManThing]

Thanks for the knowledge Forrest!

[@davidnewland2556]

I would think at this point australia would understand the damage that canbe done by importing and releasing foreign species

[@ogtkells5966]

So Rick Grimes calls Carl, Coral, and Forrest calls Coral, Carl. English man. It’s weird

[@tonycosby2919]

I would say that Fire ants are right up there with some of these.

[@AdventureswithLandon]

You did great. I would like to see you cover more about invasive animals in the future.

[@jellojoe00]

Help save the Carl Reef.

[@Wazards]

Who is Carl Reef?

[@recyclops5795]

We need Rick Grimes!

[@Sapphiresenthiss]

@@recyclops5795 "CORAAAALLLL!!!"

[@anthonyleaguepro1227]

And the Tony Reef!

[@-sakura-.]

1:57 my family just hits the ones near our house with golf clubs and ALLEDGLY occasionally launching them in our crappy neighbours yards

[@joshmaynard1505]

"Relocating" them to a "safe location" 🇦🇺

[@-sakura-.]

@@joshmaynard1505 definitely 💅 /j

[@carlybullard1187]

Cane golfing. Good popping sounds

[@toxicjuiceplug1264]

My family did this when we lived in Queensland now it's throw a boulder on a road and hear the loudest pop

[@MrTehnoobshowfan]

Great vid Carl

[@DesperatelySeekingAudrey]

We already have animals in Aus that can tolerate cane toads to a certain extent - our native water rats, Rakali, have learned how to kill them correctly without touching the venom glands. Keelback snakes have also been shown eating them with no issues. We have some birds that have learned to put them on their back to attack the cane toads stomach, so as to not expose themselves to the venom, just like our Rakali does. Cane toads are still extremely detrimental to our native species, but we do have some natives who have learned, evolutionary wise, pretty fast how to deal with these animals.

[@1legend517]

Some natives are even unaffected by the poison although they're a tiny minority like the keelback snake and meat ants which will attack and kill a toad if it stands still long enough. And also some large tarantulas. The rakali is actually resistant to cane toad poison, they're able to eat cane toads without dying. But yeah most animals have learned to either avoid eating them or only eat certain parts of the toad without the poison.

[@justinm1721]

Don't forget about our meat ants too eating them alive.

[@AncientWildTV]

can you suggest some way to deal with these animals?

[@callumsaunders6048]

@@AncientWildTVa lot of keen golfers and a lot of pitching wedges

[@FilthyAnimal1x]

7:10 oh no poor Carl 😢

[@stringer2295]

🤣🤣🤣

[@AntonioEsters-y9x]

We need to trade this guy with Rick Grimes. Cuz Rick says "Coral" when hes trying to say "Carl", and this guy says "Carl" when hes talking about "Coral".

[@lisaharley7867]

Yes I think you should create more content on evasive animals as it creates awareness 😊

[@itslexywitch]

Loved this one! Please make more invasive species videos! Florida alone has so many to cover!

[@nikkijoy5786]

I’m so glad you talked about cats! They are one of the worst and never get mentioned. People get so upset when someone advocates for spay/neuter and keeping their pet cats indoors!

[@gabriellashimone6546]

The introduction of domestic cats is a result of humans. The humans are the reason they are there. Don't get it twisted. We are the most deadly living thing on the planet and the most destructive invasive species that has ever existed on Earth.

[@nfries88]

it's feral cats and not cats that are properly fed by humans. They do as much damage as they do because they hunt for survival. Of course there's plenty of shitty cat owners that don't neuter their outdoor cats and will abandon unwanted kittens which contributes to the problem, but neutered cats that are kept well fed and allowed inside and outside freely are not a real problem. In the US, the humane society has a neuter and release program to control feral cat populations.

[@davidnewland2556]

cat fur coats could become enviro chic

[@justinashley9529]

I saw you on rogan and then looked up your channel . You're awesome dude.

[@blakewallen212]

Your passion for what you do is inspiring.

[@labangrankvist2993]

Silly Forrest. We just need to introduce King Cobras into the Everglades!

[@42ZaphodB42]

Way too cold for king cobras.

[@Verdictus13]

Studies have shown that the vast majority of the Burmese pythons in Florida are direct descendants of a breeding facility for leather destroyed by hurricane Andrew. So, statistically a tiny of proportion of the burms are from released pets, hence the lack of morphs in the invasive population, as the natural pattern/coloration is usually preferred for leather. Also, fangs on a retic was a weird choice for a thumbnail. Edit: Not sure ALL the fangs was the right choice as a fix for the thumbnail, lol

[@Munchin182]

You inspired me to get into wildlife conservation! Love your content, man!

[@riveny1066]

I knew about the feral cats ( mine are always neutered and indoor or with its own kennel) and the Burmese python. I didn't know that the Lion fish had gotten that bad. Thank you! Very interesting!

[@joshuabrzezinski2828]

Tons of terrible people get kittens don't fix them and then throw them out when they grow. Cats are great survivors unlike dogs so it doesn't take much for a handful of thrown out unfixed cats to turn into dozens. But it's really a people problem

[@willbikeforfood]

I wonder if they ever tried using the method used in the Galapagos to deal with invasive goats on cats. They put a collar on a goat, called a Judas goat, and then released it to find other goats. Then, by helicopter, they would locate it and shoot all of the goats except for the one with the collar. That goat would then wander off to find more goats and the process would continue.

[@ggoannas]

Hey! We got rid of the passenger pigeon. The Chinese eradicated some kind of water snail by sending kids out with chopsticks. Don’t tell me we can’t get rid of pythons in the Everglades. It requires regular, hard work that probably very few Americans want to do seriously.

[@dradnats176]

Love the video, Forrest! Would like to see you do a video on how domesticated cats are also considered invasive and shouldn't just be left outside!

[@btbb1816]

I thought it was cool and also sad aboot the Cane Toad story. I first learned that story from The Crocodile Hunter. Steve Irwin. Also, he did a video of rodents on farms, and way over here in Indiana, Usa. I had seen the same thing on a much smaller scale in the same type of building.

[@GroßerBöserWolf]

When I went to visit my uncle in Australia North of cairns, sugar cane country, cane toads were everywhere at night, the only animals smart enough to know how to kill them are crows who flip them on their back and eat them from their stomach avoiding their toxic patch on the top. A side note my uncles neighbour, an old guy named Barry probably late 70s when I met him in 2011 said xmas eve him and his sons would go around collecting cane toads in buckets then on Xmas morning they'd go up a local hill with some golf clubs and a bottle of whisky and would smash them like golf balls 😂. They are incredibly hardy though, you can stamp one flat and if it's guts don't come out, it'll puff it's self back up and hop away like nothing happened. The noise of them every night once it got dark walking home from the pub was crazy. So loud.

[@Nick-mg5zj]

Invasive species don’t get enough attention. Thank you Forrest.

[@DavidDrew-n6z]

Thank you for getting the Hurricane Andrew release story correct. I can confirm that the southern glades and the areas south of Miami’s are truly decimated. I have hunted Pythonsand solo camped in big cypress, by looking for animal tracks I can attest I have seen more animal tracks in 20 yards of trails in Indiana than in 7 miles of trails in big cypress.

[@kasonfurnas9551]

Glad you included feral cats but missed a major invasive, fire ants!!

[@MakuluRihihi]

Yay another Forrest video!

[@jenniferclark9170]

The Python Cowboy is a great watch on managing the snakes in Florida.

[@dimigeorg9116]

Thanks Forrest i got an A in my Exam because of this Video. The burmese python was half of the exam. You saved my life 😂😂

[@tjboylan20]

As a Florida Native the Pythons are extremely detrimental, since we have a hunting season for them some illegal breeders are breeding them and sending them to the Everglades

[@michaelhaywood8262]

Britain has invasive species as well, two examples the Mink, and ironically it was the animal rights lobby responsible for this as they released Minks from fur farms; and the Grey Squirrel which has wiped out our native Red Squirrel in most of England [it still exists on some offshore islands, and a few remote areas, it holds on in Scotland] As for feral cats, they can be a nuisance in urban areas, but in rural areas it could possibly replace out true Wildcats. We had two native felines, the European Lynx, which is extirpated, and the true Wildcat, which just about holds on by a thread in a few remote areas in Northern Scotland,

[@thomasalfred9029]

Hey Forrest, here's one you might not know about. I live in southern Spain and over the last few years Oriental Hornets (Vespa Orientalis) have become prolific, like you can't walk 10 metres in my city without seeing one. Some say they are eating all the bees, hard to confirm this though. Nothing is being done to stop this.

[@chook2870]

Fun fact- The Keelback snake and the Australian Raven have adapted to eating cane toads. Hopefully one day more can adapt and overcome the pest as well.

[@lancecarter5279]

Need to look into the black and white tegus in Georgia. There have been several spotted or killed in a few county’s in Georgia.

[@Trazor2k0]

That's wild they made it up that far north. One of my species of lizards

[@lancecarter5279]

@@Trazor2k0 yeah I believe they’ve seen around 7 or 8 and killed like 4. I get emails from the dnr and at least once a year they make the top story

[@aidenclark8621]

@@Trazor2k0 Unlike most reptiles, they can thermoregulate and can survive most places in the US. Thats why theyre scarier than pythons IMO because pythons will always be restricted to south Florida and only creep north with climate change. The pacific northwest is actually a better climate match for tegus than the everglades

[@chaoticature]

The "snail eating" snail introduction to Hawaii is a truly sad story.

[@samhutton4097]

I used to live in Southern Queensland (Australia). At night you’d look outside and sometimes there’d genuinely be like 50+ cane toads on the lawn. It was wild. I’m unsure if this was because I was close to the Brisbane river.

[@mattdixon6396]

A friend of mine whose parents owned a big block of land which was surrounded by national parks. Her father was a bird nut and he used to actively hunt them and he culled many hundreds over a few years (the native bird population on his land increased as a result) and he kept the pelts. My friend was doing a textile course and she used the pelts in her projects with the theory that put a dollar value on a problem and it becomes a commodity. It unfortunately never caught on….

[@jacksondoherty7684]

would love see more on current invasive species

[@KrzysztofSadowy-f8l]

Just a suggestion, you should play planet zoo and make your dream zoo, it’d be very interesting to watch! Hope to see it

[@nicksummerfield5408]

This could be a show like focusing one place or animal and showing the destruction they are doing and the people that are trying to resolve this problem

[@aliviabeckett9252]

THANK YOU FOR TALKING ABOUT THE FERAL CAT ISSUE😭😭 SSS

[@Tenyearslater13]

Yes I would love more videos with this info

[@johnspence5689]

Those cats are crazy big. I want one.

[@billwebber400]

I cannot tell you how many I and many friends have killed over the last 20 years, and every time we go back to the Keys it's like we did nothing!!!! There are just as many if not more... It breaks my heart

[@unlucky1353]

Northern Snakehead Fish have been spotted in NC and a couple of other southeastern states. They could turn into a huge problem with how quickly they can reproduce, and they can survive on land for a few days.

[@youngfaded9314]

Please make this a series, he’ll even a tv show I would love to know about more, maybe the snakehead in America is a good one

[@CA-lf7jt]

Yes do more of these. I’m in Stink bug and Spotted lantern fly heaven unfortunately. They destroy everything . My heirloom tomatoes didn’t have a chnce

[@lukecefer]

I’m wondering if you could do a video on any situations where invasive species have been successfully eradicated or controlled, what methods were utilized in those cases, and if those same techniques could be applied elsewhere.

[@StarFoxLazer]

Zebra Mussels ? Very very invasive

[@Darby0642]

When I lived in the NT many moons ago my neighbours were part of a quoll breeding program due to the cane toads. There was a litter rejected by their mother that had to be hand raised. I can’t say I’ve ever had another experience like putting my arm in their enclosure and having 10 tiny baby quolls use me like an amusement park. Back to the cane toads, I can’t get over how no one thought to check whether they could climb before introducing them 🤷🏻‍♀️🙄

[@danielmartin2518]

in the pnw on north america the sea urchins are a similar problem to a crown of thorns in the way that they are decimating our kelp forests. and with the lack of human interest in them they get to eat all our kelp and don’t need food to reproduce. it’s super sad to see my home losing the kelp forests that so many things including humans need and use

[@SonOfVulkan]

Another invasive species that has had devastating consequences is the emerald ash borer (Agrilus planipennis), such a prolific little guy

[@Golden_squanch]

Finally dude, I know you're a busy man but damn brother we're looking for content from your wholesome ass.

[@Goldenraptor_]

The picture you showed for a feral cat was actually a flat-headed cat.

[@itsNovik]

Still waiting on the Urban Rescue Ranch collab.

[@ninskil]

4:20 burmese pyson must be a new species i'm unaware of

[@KayentaRojo]

😂😂😂

[@Obironnkenobi]

6:45 - Austrailia needs to be careful with declaring war on animals. We all know how well that worked last time.

[@travispavich1694]

The other problem is Florida only has the hunting season open for 30 days. If you really want to make a dent in the population, open it up longer, and give more incentive.

[@TimBuck52]

really? only one month a year? doesnt really sound like florida actually wants to stop the problem in that case

[@dracodragon1743]

In 2009, 2011, and 2014, nile crocodiles were discovered living in the wild in Florida In your professional opinion, I would very much like to know if there might be more nile crocodiles out there, if we're looking at the possibility of a nile crocodile invasion, and the what the potential havoc these well known man eaters could cause Being a Florida resident, I'm very curious on the matter

[@nikkijoy5786]

I don’t know about Nile crocs but we certainly have crocodiles in SE Florida! I’ve seen them in Broward and Palm Beach County.

[@IsamotKol]

Great video

[@cadezschiesche7721]

Love this dude.

[@creaturecrew3938]

As a wildlife biologist, don't you think it's kind of dishonest to show a picture of a reticulated python in the thumbnail.

[@TheHeartThief]

Don’t think he made the thumbnail, but probably good you brought that up.

[@anandvb918]

Please discuss more invasive species.

[@robrice7246]

11:13 I remember hearing something about a gunman in Melbourne going on a cat killing spree (this happened back in 2016 so I'm unsure if the killer was subsequently caught or not).

[@dustinkoehler7565]

Who is Carl? And why does he love reefer so much

[@nikole2247]

I watch your show every Thursday and I have to know if you and Mitch are brothers because y’all look a lot alike ❤❤❤

[@CrimsonReapa]

in the cases of the cane toad and lion fish some native predators have actually found ways to safely hunt and eat them, in the case of the cane toads it's predatory birds (most notably ravens,crows and other birds in the same family tree as them) as people have witnessed them flipping toads over then spearing them to death with there beaks or picking them up and flying really high then dropping them onto rocks/roads before opening there belly and eating the insides while avoiding the organs/glands that have venom in them and it's believed these birds learned this from watching humans dispatch the cane toads as birds (esp ravens and crows and there close relatives) have very good observation and learning skills), in the case of lion fish some species of moray eel have also figured out that they can avoid the lionfishes spikes by targeting the lion fishes face and biting there face until they die then carefully eating the lion fish in a way that avoids the venomous spines, theres also a effort to teach native sharks,groupers and other medium-large predatory fish the way to safely attack and kill/eat a lionfish and also to make those predators see and treat the lion fish as prey since they can follow the lion fish into the deeper waters that human divers cannot and this has shown some success (esp among sharks and groupers as in the lion fishes native range closely related shark and grouper species or the same species do prey on lion fish), infact even with the pythons there is some evidence that alligators,crocodiles,cougars and black bears have also started to develop specific hunting tactics for dealing with pythons after now living alongside them for a few generations.

[@AncientWildTV]

What challenges do you think exist in encouraging native predators to adopt these new hunting strategies against invasive species

[@CrimsonReapa]

@@AncientWildTV well in the case of the cane toads they are pretty much off limits to everything that isn't intelligent enough to figure out the safe way to kill and eat them and in Australia that's pretty much limited to the ravens,crows and there close relatives that i mentioned in my first comment, as for the other native predators theres nothing they can do bc they are either not intelligent enough to figure it out or they physically lack the ability to safely kill and eat them with the most notable example being Austrailias snakes which are the predator thats suffered the most at the hands of the cane toads since they can only swallow them whole which is a death sentence, however i have heard that some Austrailian snakes have begun to recognize the scent of the poison the cane toads have as deadly and that these snakes have changed there hunting strategy to where they now carefully observe a frog/toad for abit and if they smell the poison of a cane toad they will refuse to attack and/or eat the toad rather then just attacking is ASAP like they used to do before cane toads were around, i have also heard Austrailian wild life officials are likely gonna start a breeding program for native snakes that show this new trait/habit in order to help there species evolve avoidance of cane toads so that those snake species don't go extinct, now as for the lion fish and pythons the only thing we can do is artificially hunt them and keep there numbers as low as possible so that the native wild life can adapt to there presence (prey learning lion fish/pythons are a threat/predator and predators figuring out safe ways to kill and eat lionfish/pythons) and hope we can do a good enough job so that native species living alongside them successfully adapt rather then go extinct.

[@2724Brettskie]

Cane toads are a problem in Florida as well. Always gotta watch out for them so my dogs don’t get to them

[@SACRJC]

Awesome and informative video! Although i don't know if it would be deserving of a top 5 spot across the whole world, i would appreciate your perspective on the feral hogs in America.

[@michaelcandelora5673]

You should do a video highlighting floridas top 5 Invasive species. As a native alot of people don’t know how many there truly are

[@lauryn4648]

Thank you for putting cats on here!

[@ericswiatek827]

I don't know Carl personally, but the fact there is a giant starfish out there munching on him is a tragedy. Thoughts and prayers for Carl

[@danbulowski7013]

Some Australian animals are learning to eat the cane toads, but not touching the poison sacks. Magpies, Crows, Ibis birds are known to do it. Not fast enough to stop the spread of the toads though

[@dalecaswell4217]

Lion-fish & that starfish were new to me -- but was Surprised you didn't feature the mongoose, or rabbit (Euro hare), or sparrow. Besides the age-old intruders -- the house mouse & the Norway & Black rats. Granted, there's a lot to choose from. Without even considering the arthropods.

[@monissiddiqui5656]

It’s always Florida and Australia.

[@jaykeinnes6793]

Loved going cane toading as a kid, a 5 wood or 4 iron and youd see who can hit them the furthest. Took them out instantly and was a bit of fun, some birds and lizards have figured out that you can eat the guts out from underneath.

[@StruggleBusStudios]

@Forrest Are there any species that were once introduced to an area several generations ago that would have been considered invasive to native flora and fauna at the time of introduction but are now considered to be "native" species by our generation? To clarify further -- species now considered indigenous to an area, but were never originally found in those locations prior to humankind introducing them inadvertently or purposely whether it be for food, pest control, etc?

[@nicfisher8266]

The cane toads do make rather good golf practice

[@Sixsicdix]

Cane toads all over south florida as well😢

[@Light_Bearer_]

You had me worried to death about Carl for a minute

[@brettkidd7487]

Fun facts, Keelback Snakes in Australia can actually eat Cane Toads without repercussions 😊 Crows are also smart enough to flip them over and eat their guts to avoid those poison sacks 🤘

[@chelseasherrell6277]

it's crazy how many times humans have thought "oh yes I'd like this exotic pet" and then that leads to well what this video is about. That is something that has always irked me; people being insistent on getting exotic pets, some not even doing really any research on how to care for these animals, and then after a while just like letting them go in the nearest wooded/watered area. Not only is it dangerous as far as invasive species go, in some ways it's quite cruel to the animal itself especially if it was human hand raised from birth and has no idea how to care for itself, Uncle Ben on Urban Rescue Ranch has an otter that was done that way. Poor thing.

[@CleverExploration]

Surprised he didn’t mention the Red Eared Slider which is considered the most invasive species

[@hossoutdoors-n-wildlife6199]

Rainbow trout are an invasive species in the Madison River and the Henry's fork of the snake river. They cross breed with the yellowstone cutthroat trout making a "Cutbow". The Idaho fish and game are releasing genetically alternated rainbows with yy chromosomes. I think this mutation makes them sterile. I can't remember how this reduces the population. Maybe something similar could help with the lionfish invasion.

[@lucabrasi5392]

I’m surprised the “common” Plecco didn’t make the list, especially since nobody eats them.

[@leethecomedian]

I love that combating human interference requires human interference

[@susanang1732]

Cane toads are out of control in Florida!

[@chasepopp4271]

If you do another one of these videos you gotta talk about the snakehead fish

[@callumsaunders6048]

Scientists: let’s bioengineer the creatures to kill off cane toads. Australians: hold my golf club

[@IrishArgie]

You should look into beavers on South Argentina, the Ushuaia province. They’re flooding the whole province

[@danielettorre1239]

That’s a lot of fangs on the snake in the thumbnail 😂😂