Aquatic Animals That Live in Trees

Fish in a tree? How can that be? For some aquatic creatures, it's not necessarily bad to be a fish out of water.
Go to Brilliant.org/S... to try out Brilliant’s Daily Challenges. Sign up now and get 20% off an annual Premium subscription.
Hosted by: Rose Bear Don't Walk
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtang...
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:
Silas Emrys, Drew Hart, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, Adam Brainard, Nazara, Growing Violet, Ash, Laura Sanborn, Sam Lutfi, Piya Shedden, Katie Marie Magnone, Scott Satovsky Jr, charles george, Alex Hackman, Chris Peters, Kevin Bealer, Alisa Sherbow
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
academic.oup.c...
www.researchga...
www.fs.usda.go...
www.savethered...
digitalcommons...
humboldt-dspace...
jeb.biologists...
jeb.biologists...
jeb.biologists...
vtechworks.lib...
academic.oup.c...
www.registrele...
savetheredwoods...
scienceline.ucs...
acsess.onlinel...
#SciShow

[@ajmala9250]

It's nice to see somebody tries our local language. 'Maranjandu' literally translates to the tree crab. Mara means the tree and Njandu means the crab.

[@Snowshowslow]

Which language is that? :)

[@solar0wind]

@@Snowshowslow I'd like to know too! (Commenting to be notified)

[@surendar27k]

Very similar to Tamil Language. Maram means tree and nanda means crab. I would fully expect it to be called maranandu in Tamil.

[@TheLYagAmi]

That trees got crabs

[@jayasuriyas2604]

@@surendar27k it's from Malayalam, looked it up in Wikipedia. The crab is from Kerala.

[@estivalbloom]

This is why you shouldn't judge a fish on its ability to climb a tree. They'll take it as a challenge.

[@dissonanceparadiddle]

🤣

[@cameoshadowness7757]

And some will even pass!

[@SirGoofyparrotfish]

Einstein is wrong

[@dissonanceparadiddle]

@@SirGoofyparrotfish I mean if you're referring to that quote I'm pretty sure there's evidence he never actually said it

[@heavencanceller1863]

The fish took it personally

[@thehellezell]

5:14 "Determined Wiggle" is the name of my band's next dance hit

[@jglaab]

Mine is "Rivers to Redwoods"

[@bradfordcarter238]

Can't wait to hear it

[@chanceencounter176]

@@jglaab Your first album has to be Oceans to Evergreen Trees

[@greensteve9307]

Determined Wiggle is my signature sex move.

As a humanities librarian, the existence of a Journal of Crustacean Biology fills me with unspeakable joy. Knowledge is infinite.

[@Ppaintkiller]

._.

[@johnmcnally7812]

"As different as octopuses and orangutans" thanks to "The Future is Wild" arboreal cephalopods have occupied a dark recess of my mind for longer than I would care to admit.

[@davidsalazar13]

Loved that show. That and the show that supposed the possible science of prehistoric dragons.

[@akumaking1]

I remember that show

[@InvasionAnimation]

I liked both the documentary series, and the cartoon series!

[@dallanledford6364]

That's just the tip of the speculative biological iceberg.

[@benjaminmiller3620]

For me, its the Pacific Northwest tree octopus (Octopus paxarbolis).

[@diamondjub2318]

I was kinda expecting the variety of critters that live in the roots of the Mangrove tree, definitely not disappointed

[@glenngriffon8032]

evolution - nature's way of saying "oh forget it that's good enough."

[@Benson_aka_devils_advocate_88]

.... Ha, you think that's weird! ....

[@JB-uy5xt]

"but are you dead??"

[@jeremyscungio16]

If they live its good enough

[@saims.2402]

As long as genes get passed down, it’s aaaall good.

[@uncelesteperro8258]

... for now."

[@junchankai8307]

Albert Einstein: "Everyone is a genius. But if you judge a fish by it's ability to climb a tree, it will live it's whole life believing that it is stupid." Mangrove Killifish to other fishes: "HAHAHA, BYE SUCKERS"

[@TrashDeviant]

@whesley hynes And here you are giving them views, engagement and probably ad revenue too. By that same proxy, you're a sicko too.

[@bobsatonalog4839]

@@TrashDeviant I just searched his name up. I regret it.

[@elliotville7820]

@@TrashDeviant what did they say?

[@TrashDeviant]

@@elliotville7820 It was just copy/paste spam, something like scishow supporting animal testing

[@TheDarkever]

Fact check: Einstein never said that sentence. In fact, he said the exact opposite. And he was right, considering what we know nowadays about IQ distribution. Still, Killifish are such bosses anyway 🤣😎

[@Inugirl582]

"That look like insects..." and then we're just gonna leave that one there? 😂

[@dustinmccollum7196]

I know right. I was yelling at my phone. Saying " wtf are they then".

[@wemustconquer3510]

@@dustinmccollum7196 lmao

[@OtakuUnitedStudio]

In short, they're springtails, their own group just to themselves. They are not considered true insects because they have internal mouth parts rather than external. There are about 3600 different species.

[@SimonsDiscoveries]

@@dustinmccollum7196 It's simple. They're Collembola ;)

[@b0rder.-991]

I was reading on springtails and they can actually reduce their size through molting as well as increase their size depending on environment to better regulate their energy expenditure in different climate conditions. If its too hot, they'll reduce their size; if its too cold they'll increase their size. Pretty neat

[@davidsalazar13]

Imagining Rose Bear reciting “Plant Puddle Paradise” in front of a mirror. Nailed it!

[@Scramalope]

I love sci show. It's my comfort channel, like a security blanket but educational.

[@virglibrsaglove]

Mine, too!

[@TrashDeviant]

@whesley hynes Hi, me again! Holding true to my promise to respond to every single one of your spammed comments. This one looks like a copy/paste with an addition in brackets. See you next comment!

[@_maxgray]

TLC's original lyrics were, "Don't go chasing rivers and ponds, please stick to the plant puddle paradises that you're used to," but they were worried not enough people knew about tree crabs.

[@thelonelyrogue3727]

I'm the Lorax, I speak for the trees. And the trees say get these fish off me!

[@davestylehenry]

First

[@saims.2402]

@@davestylehenry bruh

[@ericmelto7810]

Jelly fish!

[@thethegreenmachine]

They're just looking for their barbaloot suits.

[@Sudstah]

If a crab can live in a tree and have its own swimming pool life can evolve anywhere!

[@TheLYagAmi]

I swear. Animals living in subterranean Martian surfaces don’t seem so alien now.

[@spiderpickle3255]

Reminds me of the diving bell spider. Crab decided to move out of the water and into the trees while spider decided to move out of the trees and into the water.

[@saims.2402]

My first thoughts when reading the title were fishes swimming through the hollow trunks of trees filled with water.

[@TheLYagAmi]

Same!! Lol.

[@NickRoman]

Those trees that have a fountain of water shooting out of a branch here or there?

[@wwjbrickd]

Ah i was thinking about tree frogs

[@georgetourloukis7194]

Nah I thought crustaceans, haven't seen the video yet though

[@sdfkjgh]

@Saim S.: Sounds like a minor SCP.

[@Thaumh]

Maybe the ancestors of the modern Killifish heard about Einstein's bit about a fish's tree climbing ability and decided to challenge that.

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@fourleafclover2064]

the fact that fish use squiggles launches and pounces makes me really happy

[@TrashDeviant]

@whesley hynes Big kisses for you, my beautiful spammer friend. See you next comment!

[@TAK-yj4hj]

0:38 When I picture a crab, I picture them raving 🦀🦀🦀

[@its.oreomilkshake]

Ah, I see you're a man of culture as well

[@adamantris2]

🦀🦀🦀🦀

[@OtakuUnitedStudio]

It is now Time for crab

[@leviroch]

man the 'flish' from 'the future is wild' are getting more and more like a possibility ill see in my life time lol

[@samanthaelizabeth8330]

I love Rose! Her voice and presentation is perfect😊

[@Psychol-Snooper]

This is the second time in 12 hours I've heard of springtails, and both mentioned them in passing as food. Life must be hard for a sptingtail!

[@likebot.]

Cody'sLab is where I heard of 'em.

[@Psychol-Snooper]

@@likebot. This was the Kurzgesagt video about the billion ant mega colony.

[@____________838]

They’re like the rabbits of the invertebrate world.

[@Psychol-Snooper]

@@____________838 They should take lessons from their fellow arthropods the jumping bristletail. Those things are so hard to catch!

[@paulohagan3309]

And short ...

[@altheaunertl]

Seems like you really hit your stride in this one, Rose! Loved it and also learned a lot. I didn't know about the Redwood dwelling salamanders at all!

[@TrashDeviant]

@whesley hynes Did ya miss me? I missed you

[@Paul12046]

Rose bear don't walk, you are doing an awesome job as a presenter!. And I'm excited to see what you do in the future🔮🔥

[@kashmiraraghu1822]

totally agree!

[@kashmiraraghu1822]

@whesley hynes i hate that we do that to animals but I can assure you as a scientist that every major milestone we have made in medicine has been because of animals and animal testing. The scientific community explores many other alternatives for drug testing, including cell lines, but ultimately it is only through in vivo testing that we can guide the safety and efficacy of a drug. We can choose to support cosmetic and lifestyle brands that do no test on animals to lessen the burden on animals being tested, but until we get an effective alternative to the in vivo model, science will depend on animals for drug testing.

[@TrashDeviant]

@whesley hynes How many times did you copy and paste this? Each time you do, that's more engagement which tells the algorithm that it is a good video, and the algorithm in turn signal boosts the video to reach a broader audience. So, thanks for helping SciShow get more views. And since you're complicit in spreading SciShow, you can count yourself among the sickos. Copy and paste some more, man! Feed the channel, help it grow!

[@robinhahnsopran]

I literally just came from a CrashCourse Zoology video all about how everything wants to evolve into crabs, and now here I am. If I have learned anything at all from Science KZbin, it's that everybody wants to be a crab 😂

[@alejotassile6441]

Oh! I saw you there

[@patricksarama4963]

So did I!

[@mrexclusive5406]

Crrrab people! Crrrab people! Crrrab peoplee

[@TrashDeviant]

@whesley hynes Oh wow, not copy/pasted. Well done, you actually typed something! BTW I'm going to respond to you each time I see you. You'd better hope you didn't reply to every few comments, or you'll be seeing my name hundreds of times in your notifications. Let's find out, huh?

[@carschmn]

The locals in the case of the first crab must have been like “hey want to see this weird tree crab?”

[@TrashDeviant]

@whesley hynes Oh hey there. Me again. Just keeping in touch as promised. Love you!

[@vincentfox4929]

Pretty much what happened

[@elenidemos]

There are also coconut crabs. They migrate to the ocean to breed. Then go back to burrows & forests. Also the Christmas Island red crab, that have a similar lifestyle.

[@bensonl6265]

I actually picture crabs as penny pinchers that boss around a sea sponge and a squid selling secret recipe burgers

[@OtakuUnitedStudio]

Despite his name, Squidward is actually an octopus. But there wasn't a good octopun so they went with a closely related cephalopod.

[@bensonl6265]

OtakuUnitedStudio thanks for sharing that peice of knowledge i seriously thought squidward was an actual squid

[@BlackKnightsCommander]

Those crabs deadass just living in high rise apartments with pools.

[@graphite2786]

We need a part 2! Concentrating on the biota of bromeliads, epiphytic plants that live in tree canopies. There a whole aquatic ecosystems that live in the stored water of these amazing plants! Not only crabs, frogs and salamanders but also dragon fly larvae, aquatic insect eating plants and even aquatic ants that farm mosquito wrigglers! They also serve as the water source for hundreds of arboreal species : primates, birds, reptiles even a species of bear.

[@theoverseer393]

We've known about the tree octopus for years, scishow! o3o

[@uplink-on-yt]

"If you judge a fish by its ability to climb trees it will always think it's stupid and inadequate" These fish:

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@lacewinglml]

Its interesting, sort of shows with killifish that legs don't nessisarily have to be the first thing to form to make the leap from water to land

[@Mekratrig]

Rose Bear is a nice addition to the SciShow host/narrators.

[@njlkerins]

Excellent presentation; thank you.

[@daxxonjabiru428]

She is an excellent presenter. Automatic thumbs up!

[@samanthaleshikar9025]

This is the EXACT content I come to this channel for ♥️♥️

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@gemnickygamer169]

Squiggle is now my new favorite term for fish locomotion

[@olliefoxx7165]

"The Journal of Crustacean Biology". Ah yes, the magazine you'll find on everyone's coffee table...that owns a resteraunt under the sea.

[@mjsurjawan9958]

Is there a fish on that tree? -some bear with true neutral alignment

[@amandac9294]

Sci show has an episode with killifish🥰🥰🥰🥰 I'm in love!

[@foxfire9513]

"...that researchers describe as launches, squiggles, and pounces" SQUIGGLES IS NOW A SCIENTIFICALLY ACCEPTED TERM AND THIS GIVES ME SO MUCH JOY

[@fdavidmiller2]

I got a chuckle every time she said moist thinking of the people that hate that word

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@hairytick7882]

1:00 notice the pink and red striped patterns of the majestic ten toed tree crab...

[@johnnybadboy3475]

This narrator has improved a lot since her start, good job!

[@TrashDeviant]

@whesley hynes We meet again! How's my favourite spammer doing?

[@subhadramahanta452]

In north India also, there's a fish who lives out of water, we've seen it during flood times or heavy rains, it would come out of blue and disappears just like that

[@kateclark7250]

I love the determined wiggle!

[@WanderTheNomad]

A bit disappointed we didn't get more pictures/videos of the mangrove killifish.

[@payton6213]

I forget the new host's name but she seems like she's gotten a lot more comfortable on camera. In her first few videos she looked a little wide eyed and stiff but she's really getting the hang of it. Nice job :)

[@greensteve9307]

FYI: It's in the description: "Hosted by: Rose Bear Don't Walk". Bear-Don't-Walk appears to be a fairly common last name amongst indigenous Americans. :)

[@payton6213]

@@greensteve9307 wow, that's an interesting name. I bet people making jokes all the time is pretty -unbearable- annoying. Lol thanks for telling me about it 👍

[@MagnakayViolet]

A scientist turns over a log expecting to find arthropods. *dozens of fish look back* 👀🐟👀🐟👀🐟

[@TaterKakez]

💜 love this, thank you for your hard work 💜

[@kimbratton9620]

This channel comes up with some of the most interesting things ever!

[@davidday9967]

For sure 💯

[@PushkarWorld]

Lots of love From India❤️❤️❤️❤️

[@thatdarnskag5043]

1:02 “Kani” also means “crab” in Japanese. Coincidence?! Yeah probably.

[@luutas]

She is getting better and better each presentation You can see how confortable she is already in ðis video Congrats and good job Ðe SciShow team is really on point 👌

[@OtakuUnitedStudio]

Her first few videos were kind of like watching a teacher talk to an elementary school student. She's hit her stride, though. Definitely starting to fit in with the other presenters.

[@luutas]

@@OtakuUnitedStudio Exactly. And she is doing it actually very quickly

[@al145]

I'm mind blown that redwoods are just so massively huge that they can have platforms of soil on their branches....

[@jccanizal6410]

Man! Trees are awesome!

[@josephsummer777]

Oddly, this doesn’t mention mudskippers. I’ve watched a species of mudskippers climbing up in mangrove trees in Indonesia, hundreds of them. They scamper around above the ocean, in the branches. It’s a common sight.

[@jpgalo99]

I think because it is already widely known especially in the scientific community.. The ones featured here are the most exotic or recent discoveries..

[@TheLYagAmi]

Clear proof of how land animals must’ve eventually evolved from these type of critters when they made their move from water to land.

[@josephsummer777]

Jethro Lago you're probably right. They skipped the coconut crab as well, which climbs trees and doesn't look like it should be able to.

[@SomeoneCommenting]

Being so small, maybe a few salamanders were hiding in holes in a branch on the ground, and some large bird like an eagle picked the branch to make its nest up there. They got a nice free ride, no need to climb the tree.

[@you1027]

Evolution: running whatever meme jank builds that just so happen to manage to get by

[@alexm6795]

you should do a video on the land dwelling burrowing crayfish!

[@justinmarino5601]

I was expecting y’all to talk about frogs that lay their eggs in bromeliad pools. Either way it was a cool video.

[@anentiresleeveoforeos2087]

the Pacific North-West Octopus comes to mind.

[@qwertyTRiG]

Very much so!

[@annalisestott8252]

You know that it was a good lesson in fact checking writing if you still think about it today XD

[@sapphicsongbird]

This was fascinating

[@sebbychou]

The one fish to pass the famous "Climb a tree" class

[@roboninjasaur6729]

"as different as octopuses and orangutans" Spec Evo community: *Laughs in Squibbon*

[@gengar6666]

Wow.. Learn something new every day :)

[@birdsbirding2150]

Nice.. learning something new everyday !!

[@gabormolnar2208]

plant puddle paradise!!! that is some good writing!

[@Iceflkn]

Love her ear rings!

[@invisiblejaguar1]

Can we get a video on those springtails please? This is the first I've heard of creatures that look like insects but aren't insects and stuff like that blows my mind.

[@mythplatypuspwned]

Never heard of arachnids, centipedes/millipedes or pillbugs/roly polies before?

[@invisiblejaguar1]

@@mythplatypuspwned I have, but they have different numbered limbs so they're easy to tell apart. These other guys have 6 just like insects

[@n3v3rg01ngback]

Also, I can’t stop watching this presenter’s eyes. They’re so pretty.

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@SeraStaplz]

Another one of these videos that really needs waaaaay more visual elements. Also, most of the creatures featured could really use more details about how they live in those trees, and SHOWING how they get there.

[@techwithkeyur1924]

T.h.a.n.k.s f.o.r w.a.t.c.h.i.n.g F.o.r m.o.r.e g.u.i.d.a.n.c.e~~~ +1......7.....0....4....4....4...4.....0....9 ...8.....8---

[@vanderkarl3927]

When a branch is two meters wide, it is not just a branch. It's a sideways tree.

[@anthonyberube946]

You are amazing and you've gotten so much better at this since you first started I absolutely love you honey!!!!

[@anthonyberube946]

And by better I mean obviously less nervous 😑♥️♥️♥️♥️♥️♥️♥️🔥🧯

[@TheLYagAmi]

This is super interesting!!

[@87xboston]

2:33 "Eye Steel (I steal) Film from Canada" lol nice pun

[@Amitdas-gk2it]

TY 😊

[@detritic]

One good thing about working for the Journal of Crustacean Biology is that even if crabs go extinct, they'll be back

[@epicsmashman6806]

Great Pacific Tree Octopus

[@benjaminmiller3620]

Or the Pacific Northwest tree octopus. (Octopus paxarbolis) I legitimately expected it to at least have an honorable mention. (Despite, you know, not being real.)

[@qwertyTRiG]

@@benjaminmiller3620 GNU

[@AZ-bj8gw]

Wow, neat! Nature: Some crazy things out there...🤯👍

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@pauljewel6988]

Three things I would like to know 1 How big of a iron dust cloud coalescing, would it take to make say a railroad spike ? 2 why do they always show the solar system in the flat instead of a more realistic representation of a helix where the planets are following the sun around the galaxy ? 3 in an ever expanding universe, where space between everything is getting larger(even molecules) , could I be as big as a mountain was a short time ago ? 3a When considering time travel should we be concerned about the size we might be when arriving

[@cornbreadfedkirkpatrick9647]

Say what? I wonder when Sponge Bob is going to introduce this one.

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@midhunmurali3709]

Good one

[@annic319]

I really hope we can save these guys from climate change, imagine what we can learn from them. And even if it ends up being nothing at all, life shouldn't be judged by how useful it is to us.

[@FrontierSettler]

I’m not sure why they left out one of the most famous. The Pacific Northwest Tree Octopus (Octopus paxarbolis) is endangered and should have been on this list.

[@thejuggernautofspades9453]

Dude crabs being the ultimate animal, like a crab that can climb trees

[@alisgray]

Go crabs! Hurray for indigenous people, scientists, and indigenous scientists!

[@walterrobinson9796]

My knowledge of the North Atlantic Tree Octopus is finally useful

[@Camphreneas]

I swear, nature kept having these weird updates in life simulator, and I can’t tell whether these are features, or bugs within the system.

[@TrashDeviant]

@whesley hynes Oh wow RIP your notifications. Almost feel bad for spamming a spammer at this point. But oh well, a promise is a promise.

[@beresponsibleanddontletyou8825]

Great video

[@jorgerangel2390]

Best host ever

[@thephantommasquerade8241]

My first thought when I saw the title, was that Octonauts episode with the poison dart frogs, where a tidal bore tore through the amazon river throwing lots of fish into the trees and the Octonauts had to use their new gup that looks like a helicopter based on a dragonfly to get the fish out of the trees before the dart frogs tadpoles hatch and they need the puddles up in the trees to put them in.

[@mckryall]

This reminds me of the behaviors of some "wharf crabs" on the gulf coast. I've observed some coastal wharf crabs living in a wet, sandy beach environment right next to calm saltwater. In a shallow area, on a tiny (few hundred feet long, maybe 100ft wide at max) sandy peninsula with lots of trees and other plants holding together a raised portion and a lower beach portion, there were areas of the shoreline with trees that had once been fully rooted in sand and soil, but had been killed by hurricanes and erosion, I think pine trees. These trees were now situated right on the water's edge, and stood at or near their full height, but without their bark or branches. The lower portions were stained dark brown and had been smoothed out, while the upper portions had become dry and had cracked surfaces. In areas at the top of the root system, there were holes where the tree had been hollowed out, and whole groups of wharf crabs had taken up residence inside the trees, scurrying into the hollow portion and then up into the trunk at the first sign of danger. If you knocked on the trunk, the little wharf crabs would scurry around, just barely audible. When they were outside the trees, they mainly wandered in reeds and other plants at the water's edge. As the trees were eventually blown over by storms, crabs still remained in the stumps.

[@cameronhanna367]

To recap the point of the video. In a world with no land vertebrates, convergent evolution creates prehistoric fish similar to what we see today. Fish fly out of the water for the same reason. And they follow the path to amphibian

[@claysoggyfries]

Imagine chilling under a tree and some crabs fall on you

[@shivampatel163]

kzbin.info/www/bejne/q3bKqmmeg8yklc0

[@alexbrewer9930]

Unseen University faculty on bananas: "Very nourishin' fruit, Mr Stibbons." "Yes, sir. Although, funnily enough it's not actually a fruit, sir." "Really?" "Yes, sir. Botanically, it's a type of fish, sir. According to my theory it's cladistically associated with the Krullian pipefish, sir, which of course is also yellow and goes around in bunches or shoals." "And lives in trees?" "Well, not usually, sir. The banana is obviously exploiting a new niche."

[@kylestanley7843]

5:13 That pause lol

[@RMSLusitania]

Real

[@glacierwolf2155]

Of course crabs would live in trees. They are the absolute pinnacle of nature, after all.

[@ethanwagner6145]

I have questions. Are there any gills that have evolved from lungs? There are plenty of lungs and air respiratory organs that have evolved from gills but have any evolved back into gills? Also are there any known examples of tertiary aquatic species? Whales being a prime example of secondary aquatic where they have evolved into aquatic organisms after their ancestors were terrestrial? Are there any species with ancestors that have evolved from aquatic to terrestrial to aquatic to terrestrial and finally aquatic?