Marine Biologist Answers Fish Questions From Twitter | Tech Support | WIRED

Professor of marine biology Dr. Kory Evans answers your questions about fish from Twitter. Why are orcas attacking boats? What is the fastest creature in the sea? How do octopi change colors to match their environment? Are jellyfish immortal? Answers to these questions and many more await-it's Marine Biology Support.
Director: Lisandro Perez-Rey
Director of Photography: Constantine Economides
Editor: Richard Trammell
Expert: Dr. Kory Evans
Line Producer: Joseph Buscemi
Associate Producer: Brandon White; Paul Gulyas
Production Manager: Peter Brunette
Production & Equipment Manager: Kevin Balash
Casting Producer: Nick Sawyer
Camera Operator: Mar
Sound Mixer: Rebecca O’Neill
Production Assistant: Caleb Clark
Post Production Supervisor: Christian Olguin
Post Production Coordinator: Ian Bryant
Supervising Editor: Doug Larsen
Additional Editor: Paul Tael
Assistant Editor: Billy Ward
00:00 Marine Biology Support
00:10 Is Finding Nemo accurate?
01:00 How do white and brown sand differ?
01:35 How do schools of fish swim in harmony?
02:31 Why are orcas attacking boats?
03:12 What is the fastest sea creature?
03:31 Where do shells come from?
04:26 How do starfish know they're hungry?
05:15 How do mantis shrimp see more colors than humans?
05:56 How did angler fish evolve to emit light?
06:28 What is the smartest animal in the sea?
06:49 How do octopi change their colors?
07:14 How do you tell a fish's age?
07:42 How are fish classified?
08:20 Do all fish have similar fins?
09:08 Does coral count as an animal?
09:56 How do goblin sharks eat?
10:28 Are vampire squids real?
11:02 When did whales learn to walk on land?
11:25 Are seahorses real?
12:00 What is the best defense mechanism in the sea?
12:47 What do fish breathe in: water or air?
13:25 How do sea creatures know where to migrate?
13:58 What is diel vertical migration?
14:33 What lives in the Mariana Trench?
15:12 How do bioluminescent waves work?
15:36 Are jellyfish immortal?
16:36 Where did hermit crabs come from?
17:09 Do fish sleep?
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[@jopo7996]

His presentation style is so smooth. He didn't flounder once.

[@gavingee1042]

nice 😎

[@TheFierywaters]

Schooled!!!

[@Gobra5]

I sea what you did there!

[@dewetslabbert4386]

I sea what you did there

[@joanna0988]

I hope he sees these comments 😅

[@bin4ry_d3struct0r]

Okay, the mantis shrimp boiling water to exceed the temperature of the sun's surface is literally the craziest motherfxxking thing I ever heard.

[@i.d.6492]

Lmao fr

[@martinmartensson4715]

me too, i had to pause the video and think about it.. can we harvest this energy? Like use mantis for energy :)

[@OmnipotentO]

That some anime sht

[@fusionwing4208]

its one of the most well known facts about that particular creature, whats crazy about its punching power is that such a small creature can seriously hurt you with just one strike. It's said to produce forces exceeding a .22 caliber bullet

[@Wolf-ln1ml]

@@martinmartensson4715 It's an _extremely_ small amount of matter that gets heated up this much, so there is aactually very little energy involved (in that aspect). Imagine getting hit by a projectile like a pistol bullet, but instead of an actual bullet, it's a single grain of finely ground flour (ignoring air friction). The _speed_ would be the same as that of an actual pistol bullet, but the mass would be extremely low, and consequently the energy as well - you'd barely notice it instead of bleeding all over the floor ;)

[@JayBird_313]

So starfish not having a brain and always being hungry finally makes sense with Patrick..

[@visualcipher8372]

a literal shrimp creating heat as hot as the sun by punching water, my lord.

[@umbreoniteUwU]

It makes a spark of light, too

[@nteta10k]

Out of all the facts… that one’s got me stunned.

[@Kattcreate]

I am shooketh!

[@yakb.7690]

Fun fact the surface of the sun is actually relatively cold -"only" about 5600 degrees celsius. Now the atmosphere and core of the sun are a different story at millions of degrees

[@smilingzuko9613]

The shrimp literally has the power the sun in their hands

[@Mathematics42069]

"No google needed" was so cold

[@jonatanrullman]

I'm and it tech with a degree in project management and even I didn't need to Google that one.

[@lilynoir3939]

...but aren't Marlin the fastest fish? I love his passion tho

[@ezra9521]

@@lilynoir3939”Love his passion though” Dawg, google it. Marlin aren’t the fastest fish. One of the very first sentences I read is how the top speed of Marlin have been greatly exaggerated by certain reports.

[@Fishifyed]

@@jonatanrullmanI’m and human and didn’t need google

[@aLime404]

@@lilynoir3939Sailfish are marlins, but not all marlins are sailfish. Sailfish are the fastest fish in the marlin family (Istiophoridae)

[@lilianaabramson6959]

Thats my professor!!! Omg!!! Absolutely loved his class last year, definitely one of my favorites I've ever taken!

[@sarahpreston4558]

i wish i had taken his class 😭 also omg hi liliana

[@cthulhu_lives8169]

Will you ask him why he doesn't point out there is really no such thing as fish? Phylogenetic taxonomic groups must be clades. A clade is a group that includes all the descendents of a common ancestor and that ancestor, and all the different organisms that we think of as fish don't form a clade.

[@bobbifergus3110]

So jealous! I didn't think I'd ever miss sitting in a classroom.

[@Roxxionluvs3]

​@@cthulhu_lives8169 it's a lot easier for others to understand instead of calling them other names. It'll just confuse others.

[@breathingspace3485]

Where does he teach?? I’d love to take his class!

[@dennisbrown7079]

I imagine them putting on the hat and saying “LoOK iM a hoOMAN” and all the other orcas laugh hysterically

[@philcollinslover56705]

Howdy Howdy Howdy

[@deezbackissues2703]

@@philcollinslover56705 why did i hear this so clearly

[@mollusckscramp4124]

@@deezbackissues2703 same lol

[@Gavrilo-ww6nd]

BRING HIM BACK. MORE VIDEOS WITH THIS GUY.

[@lukesguywalker]

Imagining a pod of orcas proudly displaying their rotting fish hats is so funny to me 😭 EDIT: didn't expect a comment I made in passing thought and then promptly forgot about to elicit quite so many fake deep replies, but here we are

[@aidenhall8593]

I’m sure that’s what we look like with our leather jackets

[@MajorJakas]

Do aliens laugh when we wear each other and animals?

[@kimyoonmisurnamefirst7061]

The fashion died out the following summer it kinda came back and then it came back again in 2022... Gorillas apparently have a sense of fashion too?

[@obsidianwing]

@@kimyoonmisurnamefirst7061 they put palm leaves on the head or around them like blankets

[@mayarosales09]

I wish they showed a picture of the fish hats

[@Mustlovebooks15]

I could have watched a couple hours of this guy answering questions. He explained enough without going overboard or racing through and not really answering. Super interesting.

[@Fyeris_GS]

Could’ve*?

[@oliverfrots9300]

You couldn't have? Personally I could have, I enjoyed it

[@natsinternetdiary]

same!!!! i love hearing about marine biology and he explained everything so perfectly. WIRED, PLEASE BRING HIM BACK!!!

[@christianhansen3292]

fascinating indeed

[@SciMinute]

I couldn't get enough of this guy answering questions. He struck the perfect balance, thorough without being overwhelming or rushing through without real answers. Absolutely fascinating!

[@morgansmith334]

This was super interesting. Everyone who’s interested in aliens should just be a marine biologist

[@BwInNewJersey]

But where would they fill their need for conspiracy theories?

[@renegadetla9331]

Truth is often stranger than fiction, as they say 😂❤

[@monciparedes]

This needs a part two.

[@rareblues78daddy]

I can see it now: "We've finally learned there is no Twitter" -WIRED! Can't wait for it....

[@pilot1629]

...you must love videos about animals and stuff?

[@AlecAkin]

Definitely more of Dr. Kory would be awesome, WIRED!

[@broylez4lyfe821]

It is extremely humbling to hear an expert disclose specific information right off the dome. Incredibly smart human!!

[@CaptainAMAZINGGG]

You can do this too, if you learn things. 👍

[@tiphainer7143]

I’m sure he knows all this having studied to become a specialist and professor…and also it’s a KZbin video compilation of answers he’s previously provided to questions asked on Twitter. 🤷🏻‍♀️ You can do this to if you learn things you’re passionate about.

[@academicstewart]

Guys, "Fishes" is correct. The only time "fish" is used in the plural is when you are referring to many of one *kind* of fish. (Which is what we do normally). It is "Fishes" when you are referring to the entirety of the paraphyletic group.

[@cdabcdefg12345]

beyond that, fishes is used to acknowledge individuals, as singular words like that are used to commodify animals

[@rinnavalcury7008]

I've always wondered if there were immortal beings, and having them be jellyfish just somehow made a lot of sense to me

[@user-us6pj2jw1h]

lol

[@VinnieG-]

immortal means you can't die right.. If you smash one with a hammer it's gonna be dead

[@ENDESGA]

@@VinnieG-immortal means "unable to die naturally over time", and often involves regenerative processes. Invincible would be if you hit it with a hammer, and it wouldn't die. Hydras and tardigrades are almost invincible

[@VinnieG-]

@@ENDESGA chatgpt be lying to me then xd Yes, that's correct. When something is described as immortal, it means that it cannot be killed or destroyed in the conventional sense. Immortality implies an eternal existence, unaffected by the passage of time or any mortal threats. This concept is often associated with mythical beings, gods, and supernatural entities in various cultures and religious traditions. In fiction and folklore, characters such as vampires, gods, and certain mythical creatures are often depicted as immortal, possessing an enduring life force that cannot be extinguished by ordinary means

[@jforozco12]

chat gpt is just an aggregate of things you can find online presented as natural language, dont be fooled by the info provided its as trustworthy as anything you can find by searching google@@VinnieG-

[@BeautyMonster1000]

He's so cool! I could listen to him talk about marine life for hours!

[@sz9635]

I love when an expert so clearly love their field. Super interesting stuff

[@brauliogarcia1836]

these are the type of videos that are worth to watch on internet. all the architecture of each creature, molecules, the elements of the earth and the sky is beyond amazing!

[@Fyeris_GS]

I’ve gotten to know Dr. Kory over the last few years, and he’s a good, genuine, and brilliant man. I’m glad he’s getting in the spotlight and hope he can continue inspiring young people everywhere 😊

[@cthulhu_lives8169]

Will you ask him why he doesn't point out there is really no such thing as fish? Phylogenetic taxonomic groups must be clades. A clade is a group that includes all the descendents of a common ancestor and that ancestor, and all the different organisms that we think of as fish don't form a clade.

[@ratboygirl]

@@cthulhu_lives8169for convenience lol edit: also, 8:13

[@Tyme_flies]

​@@cthulhu_lives8169will you give it up ? Or are you gonna keep asking until someone gives you the answer that you want. I believe it was explained in a earlier comment you left that it WOULD JUST CONFUSE PEOPLE TO USE OTHER NAMES! Geez do you not like the man or what ? Im sure you've spammed this same question down the thread .

[@thydevdom]

Dude is super easy to listen to and I learned a lot.

[@angstymedusa]

This was fascinating, Dr Evans needs his own nature show.

[@laurelduvall9092]

Man, I never get tired of marine biology

[@wongwu]

Neither does George Costanza

[@RandomGuyWhoMakesVideos]

2:57 Wait your telling me "Drip" Is a thing in the world of Orca's? Now thats hilarious.

[@Graphomite]

Get you a fish hat.

[@LadyPantera57]

I didn't know seahorses were real until I was 12, when I went to a pet store and they had seahorses. I had only seen them in illustrated children's books, so I thought they were just a mythical creature.

[@themissyness]

I learned narwhals were real just a few years ago. I’m 30.

[@andiflores4638]

I’ve seen them in the little mermaid, and then I also eventually discovered that they’re real 💚💜❤

[@hithere-ck6mu]

at the end of the day we're all just bony fish

[@FoxxyMoxxy13]

Who else paused the video to google orca wearing fish

[@nadineappesbacher952]

😂😂😂

[@kellym9190]

Stop watching me 🤣

[@casetteplayer]

It was a fad at the time biologist posited at the time

[@Deostroyer]

are u FBI???

[@briar7371]

i did HAHAHA

[@im_boingboing]

I love his vibe so much, he seems so sweet and chill

[@bananasnapples9465]

i studying to become a marine biologist right now. this is inspirational to me

[@meep1832]

Keep it up! Many of us here are would-be marine biologists whose dreams were dashed

[@bananasnapples9465]

@@meep1832 thanks

[@tylerlormand5644]

AWE SIT DOWN @@meep1832

[@maddog9265]

i studying too

[@ingGS]

This was fascinating and enlightening. You can tell this guy knows his field as he answers so precisely and quickly.

[@evanray8413]

Editing exists.

[@jesnoparat1331]

All of this is so very fascinating. He really knows his stuff and is such a great communicator, which is so so rare. Great video!

[@werbinich]

This was one of the most interesting episodes yet. I exclaimed loudly a few times at the facts provided. 👏👏👏

[@terriwetz6077]

I did too!! 😁 Said "What??" a couple times and "huh!" a few others.

[@mayarosales09]

The mantis fish punch fact got me like ?!?!

[@SoloAdventureDiva]

I love this series! They find the best people ☺️

[@Cachicochip]

This was one of my favourite Wired Answers, had me hooked all the way, and I learned some new stuff. Thanks.

[@ClappOnUpp]

First 5 seconds.. "fishes" 😂😂 Came out swinging

[@yev_tte]

Ts had me rollin 😭

[@JusTryNc]

Omg I was looking for this comment

[@jerryhill8281]

I mean thats the correct way to say it... when talking about more than one species of fish.

[@jerryhill8281]

@@yev_tte its how you say it though. Fishes when youre talking about multiple species of fish... kind of embarrassing laughing at someone because YOU dont know something...

[@HeyImCi_]

@@JusTryNc Actually "fishes" is the accurate term when you are talking about multiple species of fish together. When you are talking about the multiple of the same species it's just "fish" as the plural.

[@odysseus2551]

really love this guy. please bring him back for a second video!

[@ashleeramirez5744]

I NEED MORE, BRING HIM BACK

[@meiahani2920]

super interesting. can listen to this guy for hours. just the right amount of detail and extras in each answer

[@yatta747]

I'm in love, clear funky nerdy and soft explanations 10/10❤

[@RandomGuyWhoMakesVideos]

He looks like the type of guy to be a Marine Biologist (In a good way)

[@duffman18]

Black?

[@SirChubbyBunny]

Huh, there really **are** some benefits of being a marine biologist!

[@GenericWBrand]

Classic

[@e_pistolito]

tbh most of this questions deserved a whole video, I cant get enough of him

[@dshepherd107]

This might be one of the best short, most fascinating marine animal Q&A I’ve seen. Thanks a lot!!

[@anthonymaitz]

He is amazing. This is my favorite of this series now. I could watch hours of him.

[@hulkslayer626]

This was probably the amazing episode I've seen! Could have something to do with taking Marine Biology classes in grade school and it feeling nostalgic 😊

[@GabiNands]

One of the best Tech Supports ever! Loved this dude!!!

[@ShugAveri]

So fascinating. Dr Evans explained everything perfectly.

[@12thDecember]

I knew I was going to enjoy this as soon as I saw his great smile. ♥ Super questions and answers. Thanks, Wired!

[@ZoneKei]

This was so informative! Absolutely crammed with info. Thanks Kory!

[@pepebeans3262]

Dr. Kory Evans was so professional yet so chill whilst answering, loved it

[@nigeriazayas184]

I love how knowledgeable he is. Seems like he would be an amazing teacher. I learned a lot form this!

[@ozamram]

This was so interesting and everything was well explained. Thank you Dr. Evans!

[@alitzzy]

The questions are getting better or this was indeed a subject that I didn't know much about. So many interesting points! Thank you!

[@abigailgarcia3090]

This man is a true TEACHER! he educates , keeps you engaged and drops additional knowledge without inundating you with information. ❤

[@SlamZee]

My dumbass thought this was Suge Knight

[@yazela]

Sameeee 😂

[@drakothysnaco]

This the funniest I’ve heard 😂

[@daemonredfield3211]

My dumbass realised I was spelling Shiv Night incorrectly.

[@jazzi5362]

The way I just cackled

[@DJ-sl6de]

They look nothing alike

[@pedrobrandaod]

Wow, such good explanations! Bring him back!!!

[@lauren-ry8rn]

I loved this! I hope there'll be a part 2!

[@nancyl6745]

Truly fascinating! I volunteer regularly at a very special coral reef bay doing education and conservation. And there were things in here I didn’t know it was very interesting and informative. Really a well done video as well. Want to see more of this! Want everyone to see more of this!

[@stressedariesmood]

This is genuinely the most interesting video I’ve watched in ages

[@RaindropsSunshine]

Thanks Dr. Evans! Learned so much :)

[@Mister.Meeseeks]

WOW, one of the best so far!

[@brianng8350]

Loves that he gives more info than asked. Wealth of information!

[@jeanettec1354]

i love when people have the ability to make me feel so engaged in something i never realized i would be so interested in

[@josiahscott9108]

I’m just here because I went to high school with Dr. Kory. Just proud I know/knew this guy

[@Omar-wq9dz]

Insane how only 20% of the ocean has been discovered

[@jplb96]

If we haven't discovered it how do we know it's 20%? I know where the ocean is.

[@Perryhdp]

@@jplb96 I seen some one explain this. They use math to estimate the size of the ocean.

[@Jmvars]

@@jplb96 His word choice is weird. We know roughly the size of ocean, we just haven't been to every part yet. Basically, he means explored, not discovered.

[@Darien04]

Ocean is 71% of the earth and we haven’t even discovered everything on land so I’m not surprised we haven’t discovered much of the much larger ocean

[@semoremo9548]

I think you mean "explored" instead of "discovered". And either way, it's misleading. We know what there is in the ocean, at least largely. What that 20% thing means is that a HUMAN hasn't been down there, but we have robots and other technological advancements nowadays that makes it possible for us to know what is down there. Of course, in life nothing is ever 100%, but rest assured that we largely DO know what is down there, and there is no megalodon hiding there.

[@sarahlazaro9403]

I want to be Dr. Evans when I grow up fr. This guy is great with words and so passionate. We need a part 2!!!

[@OneSmileAtATime.]

Wow! Super fascinating information! Thank you for taking time to share this with others.

[@zia614]

I can tell he loves what he does. Great video ❤

[@heatherlxnn]

This was fascinating!

[@OrdinaryDrummer]

Very interesting and comprehensive, would love a part 2!

[@CL-do5eq]

This is the kind of content I will continue to enjoy. Educational and refreshing

[@WooShell]

ugh.. the protruding jaw was a picture that could have come right out of an Alien movie..

[@Dan-B]

What I learned today is the important information that Orcas had a fish hat trend.

[@ahabwe]

This is the best one I've watched so far

[@meyercamden]

Love This! Fantastic teacher with great facts. Thank you for sharing.

[@Darien04]

This guy is great, nice video!

[@quirkyviper]

More time with this expert, please!

[@sybellb.91]

This is so interesting and informative. Thank you🙌🏻

[@FormerlyAVM]

“Fishes” is the most amazing thing in this video. 30 years and I now know it’s fishes, I’m shook.

[@okaygworl]

I’m convinced all ocean life is aliens

[@baffourappiah3853]

So no one is going to talk about the fact that he said biology basically classifies humans as fish.

[@sparschaelerrolf]

cuz its not the case

[@jmg999]

This was incredibly interesting. Thank you, Dr. Evans!

[@javierapalacios5915]

Omg!!! Love the video! Please do part 2!

[@Kaspisify]

Oh my god. Can you imagine the REEEE'ing on the right if they made an accurate Finding Nemo where the dad turns into the mom. I would love to see that. The chaos that would erupt online would be absolutely glorious.

[@KimJongSpoon_]

why does everything have to be political with you leftist types? Can yall not just go about your life without every little thing being about politics. Like it cant be fun or mentally healthy to live like that.

[@killjoyredux8361]

Um, no, they wouldn't care because they realise that clown fish are not humans. Unlike 'you leftists' who throw biology and reality out the window in favour of your utterly absurd and damaging ideology.

[@Axhka6]

Marine biologist 🗣️🗣️🗣️ JOJO REFERENCE 🗣️🗣️🗣️🗣️🗣️🗣️ORA ORA ORA 🗣️🗣️🗣️🗣️

[@coldrunhershel604]

Thank you, I was about to be extremely disappointed but you saves my day

[@melylicious]

Pls elaborate

[@coldrunhershel604]

@@melylicious was looking for someone to bring up JoJo Part 3 protagonist Jotaro who becomes a Marine Biologist later in the series

[@gabrielmjelle3738]

Great content, and a very compelling scientist. More of this, please ❤

[@xstaticgurlxx]

Dude needs a podcast

[@kevinguimond7711]

Great video, very informative. Lots of interesting topics covered here. If I ever go back to a beach with white sand I'll never think about it the same way😂

[@unknownhours]

The white sand beaches in north Florida are made of quartz.

[@Syren90...Aka9]

What a charming professional. This was lovely to witness.

[@FatherGixxer]

Was nice how many questions were asked. Sometimes feels like not enough are being asked.

[@blackcloud415]

This was fascinating! I really like how he presented each fact and just how comfortable he is with it. He seems like a pretty cool guy :)

[@KrispyNuggetBoutique]

I was punched by a mantis, went straight through my 5mm wetsuit and broke skin.

[@monbub]

I need a part two of this, it was so interesting!

[@xolaxola110]

You are so smart prof, first KZbin full video in a while

[@filmbuffvictor]

More Dr. Evans, please! Really enjoyed this segment-- facts about fishes and ocean life is always intriguing. And OMG new fear unlocked with the cone snail! 😬

[@msoulforged]

Ooh fish support 🎉

[@MostlyMajestic]

This was entertaining. Thanks for sharing your knowledge.

[@Frank7489]

I was not ready for how fascinating this was!

[@Dwagginz]

This was an excellent and interesting video. My only qualm was Dr. Evans made a small (common) mistake with the electrical defense comment. 600V is a voltage, not a current. Current is measured in amps. They're two different properties of electricity. But it's not a major mistake.