Why are fish fish-shaped? - Lauren Sallan

[@TEDEd]

Lauren Sallan explains why fins and tails are so common, and what it reveals about fish.

[@idrinkbleach188]

TED-Ed wheres spongebob

[@Hirusari]

Wow nice vid

[@Hirusari]

Spongefishbob is here

[@Hirusari]

In 2:08

[@that_pizza_drive6687]

TED-Ed why was there a dolphin they arent fish ?? ?-? dolphin arent fish? Right

[@adelachynoradska1974]

I just watched video about fish. I should have studied for computer science exam, but i procrastiate watching video about fish.

[@junminnie]

Omg same but physical chem for me

[@hafsaabid7454]

Same, it’s ridiculous.

[@EduardoVillalobosPiano]

Feel you, bro

[@strange_and_magnificent]

I feel you, I’ve procrastinated watching this video instead of studying for my history test.

[@Nooo893]

Feel for you but sleeping because TedEd is so addictive

[@jasepoag8930]

0:48 Get that dolphin graphic out of there. We're talking fish.

[@SciencewithKatie]

Jase Poag Let’s just say creative license was taken! They’re goodun’s, we’ll let them off! 😊

[@largepeep8710]

Jase Poag also the whale

[@flomero]

statement on this topic by lauren sallan on twitter: "It's a hint about the final point of the video. All swimming things are under similar pressures - even whales. Lots of convergent evolution in shape!"

[@catherinevo6060]

I noticed that

[@NikitaMichaelJackson]

Hahahahah, you really are something, aren't you?

[@xmellifluusx4432]

"Why are fish fish shaped?" *speech 100*

[@weirdalexander8193]

“Hits blunt” Dude, check this seaweed I got from the fish concert. It’s radically aquatic!

[@azmeriliza3788]

"One fish two fish red fish ted fish" - Me

[@arvo-noon]

LoL

[@oop5648]

I love it

[@azmeriliza3788]

@@oop5648 lol you replied to an one year old comment

[@oop5648]

Azmeri Liza I didn’t even notice oof

[@gill426]

Whoever does the animation, it's most wonderful! It's so cute and so funny and so beautiful and informative. Thank you so much guys, what a great video!

[@saeyoungchoi3343]

anyone wanna head to fishella with me

[@AlioshaKaramaz0v]

Saeyoung Choi i do!

[@gill426]

Absolutely! Where we divin at?

[@jahnavee_palsodkar]

Meeee

[@Saffie15]

yes, of course.

[@siren_gaming8565]

Where can I get those songs

[@kyles.7750]

3:28 I found Dory!

[@largepeep8710]

Yo why tf are there mammals in the fish randomiser, dog?

[@jacobmcginnis7092]

Large pEEP I noticed that too lol

[@kalisticmodiani2613]

Those mammals are also fish shaped due to convergent evolution.

[@shawk952]

Dog fish.

[@SciencewithKatie]

For some reason I never thought of eels as being “fish”. I thought they were classed as something else, so thank you for teaching me something new/something I probably should’ve already known! 🙈

[@Tsukiko.97]

Here is my 2 cents on this notion; There is no descernible defeintion (biologically) for a fish. A fish vaguely describes any living organism underwater rather than a evolutionary branch or trait. Also In the book, "The Encyclopedia of Underwater Life" (edited by Andrew Campbell and John Dawes) there is a chapter called "Fish, what is a?". Under the section header "Classes of Fish?" subsection "Basic Parameters" starts with the relevant part (which boils down to what Anderov said): "Incredible as it may sound, there is no such thing as a “fish.” The concept is merely a convenient umbrella term to describe an aquatic vertebrate that is not a mammal, a turtle, or anything else. There are five quite separate groups (classes) of fishes now alive - plus three extinct ones - not at all closely related to one another. Lumping these together under the term “fishes” is like lumping all flying vertebrates - namely, bats (mammals), birds, and even the flying lizard - under the single heading “birds,” just because they all fly. The relationship between a lamprey and a shark is no closer than that between a salamander and a camel. However, the fact that “fish” has become hallowed by usage over the centuries as a descriptive term dictates that, for convenience's sake, it will be used here. It is worth remembering, however, that employing this term to describe the five different living groups is equivalent to referring to all other vertebrates as tetrapods (four-legged animals), even if some have subsequently lost or modified their legs." Overall arguing that there is "no such thing as fish" is the kind of pedantic mess that you get trying to reconcile colloquial speech with scientific knowledge. , Colloquial "fish" is predominatnly a real thing - it's mostly Actinopterygii. It's just that if you want to speak scientifically, you either have to add some qualifiers or accept that essentially all vertebrates are fish. By the way this is a copy and paste I made in response to a comment in my comment thread.

[@StormiidaeBlogspot]

Abyssinia Empire thank you! You saved me a lot of typing and said it better than I could have.

[@Tsukiko.97]

Ursus sapien I would refer her to the game show QuiteInteresting but they wrongly cited the Oxford Dictionary of Underwater life. Nonetheless that is where I first learned about this idea.

[@justinshin1358]

hi again katie

[@Pfhorrest]

It's trivially easy to rigorously define "fish": non-tetrapod craniates. It's a paraphyletic taxon but that's not necessarily a problem.

[@animec-dramaskpop6362]

I love hearing that Ted-Ed intro.😊

[@nedisahonkey]

0:48 Thought you'd just throw a dolphin in there to try and throw me off?

[@SafeNation]

0:47, that's not a fish species

[@HoveringAboveMyself]

Pretty terrible mistake to make.

[@gabeveltri5297]

Hey could you guys do an episode talking about other marine animals. This video made me question the classifications of certain animals such as eels, Rays, Dolphins, Sharks, etc. Thanks guys!

[@ItsJJOLO]

That quote from dr.Seuss reminds me of my childhood. It made me grin a bit there.

[@bobmiller3627]

4:23 Stevie RAY Vaughan...I see what you did there :)

[@lix88440000]

Bob Miller it is definitely Slash even tho it looks like SRV hat... They should have used SRV indeed

[@bobmiller3627]

Slash WITHOUT sunglasses and a cigarette hanging out of his mouth? Surely you jest!

[@NiniannE]

@ 0:47 is that a dolphin?? quick tip: if the tail moves up and down, instead of side to side, it's not a fish... it's a aquatic mammal...

[@novafawks]

Nine Inch Snails is my favorite band

[@TheMark1999]

I’ve watched so many videos from this channel and I happen to stumble upon a NIИ Easter egg. This is quite literally the last place I think I would find a reference for that band.

[@canaldeyt494]

4:22 That Slash reference

[@Imperial7575]

And to think all these fish evolved from one lifeform..... A micro-organism it's mind boggeling

[@whitechocolateman1088]

I love all the content on TED-ED. It's so engaging and useful! Thank you!

[@Miimu5210]

This is exactly what our fish overlords want us to believe, when in reality their fins are manipulating every cog of human society! #staywoke.

[@Lillpevin]

Wait what?!

[@ItsJJOLO]

👏🏼👏🏼👏🏼

[@nedisahonkey]

Is this our founding liars alt account?

[@tommeng6522]

MEageRmIn

[@thrillcosby9961]

WAKE UP SHEEPLE

[@anonymbigfox]

Unfortunately, humans are turning oceans into massive dumping grounds, threatening the future of all these amazing species!

[@samanthadecano2244]

i know no matter what organization is made nothing happens i feel sad for the fish #something should be done

[@karstenszajner6043]

Oceans and lakes are filled with so many wonderful species! Thanks for making this exploring their unique attributes.

[@alinenegrea4920]

I love Teded so much, this video especially shows how vast the world is and how much there is to learn, it's truly amazing

[@DeathbyPixels]

/looks over at my betta Me: I know your secrets. You think you have the upper hand, but no, it is I.

[@rimshakhalid5037]

Animation is on point

[@patmurphey2121]

Describe the effect of plate tectonics has on the topography of the ocean floor.

[@idle_speculation]

Tl;dr, Convergent boundaries create volcanic arcs and continental trenches, divergent boundaries create mid-ocean ridges.

[@PayAttentionAll]

Ted Ed you're doing a great job. It's like an encyclopedia in video format.

[@reemasaljubab2921]

Omg the quote in the beginning is everything it made my day I love suess !!!

[@novelnouvel]

That metal seaslug at 4:34 made my day 😂😂😂

[@Airbourne92]

Please do a video on dolphins and whales. I'd really like to know how and when mammals went back to the sea, evolved to be so huge and all

[@voltysaysno5355]

I love the animation in all of Ted are videos....man it’s great

[@haujasmine]

“Fishella” 😂 This proves learning can be fun XD

[@siren_gaming8565]

What’s the song name

[@inayahnurhuriyah5738]

this is so cute, funny, and informative. thanks alot for making this video

[@imoutodaisuki]

3:15 sunfish are weird. It's like fish that got eaten half of its body and somehow grow two fins instead of regenerating its body.

[@thusspoke08]

"I believe that human being and fish can coexist peacefully" -George W. Bush

[@christianmueblas537]

The quote was deeply inspirational and motivating. Thanks Dr. Seuss

[@sofiagarcia-verdugosokolov9472]

I like her voice it's sooo calm

[@amandabane3522]

This video is good and pure

[@belamylp7712]

2:31 Nice!

[@async_RNN]

0:49 wait a minute, isn't this a dolphin?

[@karenmkrtchyan5701]

PLEASE, TED-ed, make a video on AMBLYOPIA! I’d like to know more about my condition, how it’s treated and whether there are dangerous affects on one’s health in the long term if not treated properly

[@FriedRiceINC]

So glad all the speeds were in metric. I would've had no idea how fast swordfish could swim if it was in mph.

[@aquariiums]

0:50 👌 NANI!!!!

[@blackparadoxx9656]

Hey Vox, next episode you should explain how fish learn to swim.

[@littleskittles9589]

4:26 Looks like somebody was smoking some seaWEED.

[@pranavlimaye]

I love it when she pronounces the "sh" syllable

[@NatureWitch]

When you were talking about the different forms of fish and how they move and how the eels undulate through the water which fish movement is the fastest.

[@annil1000]

was there a dolphin at 0:48 as example of FISH model, well they are no real fish even when they have this form not sure how to handle this ...

[@prudhvi8807]

Ok what category aquaman falls in caudal fin🤔

[@blarg2429]

If dolphins don't count as fish then surely Aquaman doesn't either.

[@Fractii]

Awesome vid I really love your channel its quite informative.

[@ArtAngelMouse]

That mackerel is so happy.

[@MarrylaMeh]

I love staying subscribed to this channel for videos such as these 😊

[@wezzborland3820]

Great videos! I wish sound was normalized for each od them.

[@firmanimad]

2:30 NICE fish

[@whatareyougay2826]

Ted-ED, tackling the world's most important question, one video at a time.

[@ericyao3479]

69 miles per hour! So fast and the tail thrusts so hard!

[@sadiqabdullahi4665]

I love this channel ted-ed

[@abdallahfares3660]

Wasn't there a recent study that disproved the maximum speed of a sailfish? It suggested that rather than 68-70 mph a billfish (yes I'm referring to the entire group and not just the sailfish) 's maximum speed is probably around 25-30 mph, and even that's a stretch.

[@kityoinnocent1051]

I appreciate the video But please more elaboration on how the body shape of fish deviates as they occupy different habitat Thanks in advance

[@user-kr3ct9oh4y]

Wonderful, thank you!!

[@CYRILMARTINAJARO]

2:31 nice

[@benhilborne1098]

Maybe a video on the double slit experiment?

[@trall22]

just love this channel. thank you for doing this :)

[@kromus1]

Thanks for all the knowledge!

[@pantflix5353]

TED-Ed is the best

[@WorldAquariumSingapore]

Speed and movement for fishes in water :D

[@juanmanuelpenaloza9264]

Fishella's looking pretty lit this year...

[@claudiomaldonadosalvador591]

Amazing!!! I always watch your videos and have learnt a lot thank to your channel. Nice job!

[@Aliyea]

The evolution of plants would be an interesting topic

[@bertdowns8186]

So long and thanks for all the fish.

[@pdas4611]

"Why do plants keep growing throughout their lives, but animals don't?" Please make a video on this TEDEd... I really want to know the reason...

[@vr1vairup529]

Because plant's cell keeps on multiplying and they don't hit old age.

[@VestigialHead]

Really want to see the Nine Inch Snails perform.

[@sneedle252]

Thank you. Very interesting.

[@notusneo]

02:31 nice

[@xtinction7046]

0:48 are they calling dolphins fish?

[@UnderThePoleVideo]

Very interesting! There are so many things to learn from the Ocean! Thanks for this video

[@babuaditya27]

Frequent videos Love it

[@dogoofy]

Octopus on the drums...that's a perfect assignment 😁👌

[@THE-YAYAY]

Topics about animals, physics, taxidermy, animal classification, engineering and ANIMATION AND FILM.

[@pocketsnacks]

Great video!

[@Ajboy369]

3:14 JAY WHAT IS THAT? WTF IS THAT

[@vyn_vynn]

0:50 look at the bottom right corner

[@scholarlycat6939]

My guess would be it’d have something to do with maneuverability in the water?

[@penguinisnotracist8440]

4:22 Slash-fish.

[@mjstory1976]

Very informative and interesting video

[@cotuongtritue]

I love electronic technology and hope to have some videos about that.

[@troglodyte4207]

I don’t care who you say it is that guy at 0:22 is definitely tony abbott

[@kaori410]

3:36 what's the name of this blue fish?

[@adankmeme651]

@ Kaori , it's called Japanese Kobudai

[@RG-rw1lx]

Your vids are awesome

[@ziggy8253]

I so wanna go to Fishella this year!

[@fabiohosoi]

laughed hard with the fishes in the circle pit!

[@saadmanbevore]

This video is Fin-tastic!

[@JayrMagave]

Well, it looks like the answer is because it helps their movements. I didn't see any evolution plainly stated on the explanation though.

[@MattManProductions]

The hand fish is one wacky crazy looking fish irl

[@kewgardensstation]

"Fishella: Now!!! Nine Inch Snails" ROTFLMAO! Priceless. Thank you. 😂

I find counter-productive to talk of evolution as if some species uses some mechanism because of something. I think this encourages the way of thinking of evolution as a cause and not as a consecuence; therefore contributing to magical "reasoning"

[@np7145]

wonderful video