This Sturgeon-Paddlefish Hybrid Shouldn't Exist | SciShow News

[@glenngriffon8032]

Evolution when it's acting like a laid back DM. "Well it makes no sense at all but eh, I'll allow it."

[@GreatOrigins]

What does “DM” mean?

[@ilovecoffeev]

@@GreatOrigins Dungeon Master. He's making a D&D reference.

[@glenngriffon8032]

@@ilovecoffeev Sorry but I have to correct you, I'm a woman.

[@ilovecoffeev]

@@glenngriffon8032 my bad. I didn't get a close look at your avatar.

[@jQuse]

@@glenngriffon8032 I'm pretty sure they didn't mean with any harm.

[@Schlynn]

"Nature uhhhhh....finds a way." -jeff Goldblum

[@redhippopotamus9144]

Isn't it "life"

[@coyotetrickster5758]

@@redhippopotamus9144 You're uhh, right

[@randomuser5443]

It’s a mix of America and Russia. Good luck fighting it

[@alveolate]

wouldn't it just fight itself?

[@devreed5931]

alveolate hermeneutist only if German fish aren’t around

[@kimyongin1987]

It's an anti-fascist fish

[@da_bananananana4171]

I'm glad that the world recognizes how absolutely pugnacious and stubborn we are. I don't want to take the rest of y'all out with us. I don't know how we'll do it, but the whole attitude of "everything is a political issue and we are always right" is very concerning. I don't think it's a good thing that I know this before I know what the quadratic formula is.

[@1utube01]

Only when it's the product of external, unnatural, manipulation...

[@Reyma777]

The presence of sturgeon-paddlefish hybrid could suggest that paddlefish should be moved into the sturgeon family. From what I learned during my biology degree, hybridization is firm evidence of animals belonging to the same biological family. These sturgeon-paddle fish hybrids are truly odd. Even closely related species often cannot crossbreed. For example, cattle have been known to mate with other bovines (subfamily of Bovidae) and can produce viable fertile to semi-fertile offspring with Bison, Gaur and Yaks. Cattle will also sometimes mate with Eland Antelopes, Cape Buffalo and Water Buffalo, but fail to produce offspring with these related species due to karyotype differences.

[@dragon091327]

From what I have researched on hybridization this is not an unheard of occurance, although it is extremely rare for two animals of different families to successfully breed

[@Reyma777]

SpartanPikachu what are other examples ? The only one I can think is Chickens (family Phasianidae) crossbreeding with guinea fowl (family Numididae) and allegedly with Curassows, Chachalaca & Guans (family Cracidae). Chickens can also breed with various wild pheasants, quails, grouse and pea fowl (family Phasianidae).That being said, Numididae and Cracidae are probably just subfamilies Phasianidae (pheasant family).

[@MaryAnnNytowl]

@@Reyma777 wow, I knew of occasional crossbreeding of chickens and guinea fowl, but had no idea about the quail and others! The quail had to have been the father (somehow... I can't picture it happening), or the chickens had to have been the tiniest breeds, like OEGB (Old English Game Bantam), for example. I have some of those, as well as Coturnix quail, so the actual mechanics of the mating itself kind of hurts my brain, LOL!

[@Reyma777]

Mary Ann Bittle Chickens have been crossbreed with much smaller Phasianids via artificial insemination.

[@safron2442]

@@Reyma777 Turkey/Chicken, Turkey/Peafowl hybrids have also been created. I can't find the link or remember the organisms, but there has been at least one occurrence of two entirely different species of two entirely different orders having offspring. Can't remember the outcome, just know that they exist/existed

[@johnreese7973]

Plot twist, the mice live off the dead hikers' bodies.

[@illustriouschin]

Wind blows insects up the mountains where they die.

[@marcusdaloia2974]

@@illustriouschin Wasn't that how those volcano crickets got their food?

[@ianmacfarlane1241]

Plot twist - the mice kill the hikers.

[@sdfkjgh]

@@ianmacfarlane1241: Plot twist - the mice ARE the hikers, just in their reincarnated forms. The mice are still killing the hikers, so it's a tragically closed loop.

[@ianmacfarlane1241]

@@sdfkjgh I'll only believe you if you can show me their tiny hiking boots and rucksacks.

[@FranciscoLopez-dh7nk]

Let the struddlefish be the solution to caviar shortages and sturgeon endangerment

[@Hexsyn]

Good to know I am not the only one thinking with my stomach!

[@dani.lepore9410]

You know, that basically means leading both species to extinction

[@Helveteshit]

@@dani.lepore9410 Wouldn't lead both species to extinction if you don't release them into the wild tho? Fish farms aren't supposed to be released to the wild.

[@impendio]

American Paddlefishes are already vulnerable themselves while Chinese Paddlefishes are critically endangered, just like Beluga Sturgeons. In any case all species of Acipenseriformes are probably doomed for one reason or another, which is really sad because they are one of the few remaining lineages of non-teleost fishes, with those weird shark convergences and stuff.

[@SolOnSol3]

No, they were infertile I think

[@richardbidinger2577]

Cockroaches: We can live anywhere. Mouse: Hold my beer.

[@JosePineda-cy6om]

More like "hold my breath"

[@ScionStorm1]

Mouse: Then we're coming for you.

[@electronresonator8882]

Cockroaches : hold my radiation level

[@patrickmccurry1563]

@@electronresonator8882 Roaches aren't that tolerant of radiation compared to quite a few other insects, IIRC.

[@Maxjoker98]

Finally all that inter-species mating in Star Trek makes sense.

[@MNfishes]

There is actually an in universe explaination for it

[@patrickmccurry1563]

@@MNfishes A painfully bad and dumb even for star trek explanation.

[@MNfishes]

@@B00s3 not quite common ancestor a lonely species who's empire sprawled the galaxy guided evolution on several planets that already had similar life forms the episode is The Chase

[@samiamrg7]

+Boose To be fair, Romulans and Vulcans at least ARE straight up the same species. Romulans are just an offshoot culture derived from isolated Vulcan colonists

[@LD-qj2te]

Getting your freak on

[@indridcold8433]

There was a guy at school that was caught trying to hybridize with a goat. In the honour of his attempt, he started being called, "Billy," though his real, name was Steven. I guess he was upset that his experiment did not yield human/goat hybrid eggs. He was so upset that he quit school shortly after being discovered trying to hybridize with a goat. I wish Steven, "Billy," luck accomplishing his goal. Keep trying, "Billy," someday you may be witnessing the hatching of the first human/goat eggs.

[@gradesam6306]

2 fish with very different looks, mashed together? i am truly impressed.

[@olivergs9840]

I like how some of the smallest mammals can live at really high altitudes above sea level, whereas the biggest mammals often live well below sea level

[@deathsyth8888]

Nature: You can't just mash up two different animals and create a new species! Science: I just did! Somehow...

[@icollectstories5702]

The definition of species is fuzzy; there are no sharp divisions. We humans like to label by is and is-not. An example is, say, red and orange: there is red, and there is orange, and red is not orange, but there are colors between the two - which of them are red, or orange, or neither, or both? That's a philosophical question, but classifying individuals into species runs the same way: it's an over-simplification of reality. But it's a useful tool for our finite brains.

[@daryfitrady7590]

@@NotAMathGuy haha sturddlefish go strrrrrr

[@Gulgathydra]

Nature: _You will now suffer my wrath!_

[@KateeAngel]

Hybrids are rather common in nature between those related species, who are members of one genus and have the same number of chromosomes. There are even 3 and more species hybrids. Technically most humans are also hybrids with neanderthals and Denisovans

[@manguy01]

Which the names of those characters, and it's just about right.

[@Sharkyktc001]

Anyone else find the sturddlefish's little snouts kind of cute?

[@jeffhallel8211]

I created a snout in the lab.It is a cross between a snook and a trout.

[@Cornfedcryptid]

Thank you for hosting Stefan! You did a great job :)

[@TK199999]

The fact small mammals can live at such high altitudes may help explain how they survived the asteroid impact that kill the dinosaurs. Because if you think about it, the problems living at super high altitudes would be a lot like surviving the nuclear winters and other effects of the impact.

[@Glorious_Mane]

It's like that old song, "Sturgeon and Paddlefish DNA just don't splice"

[@sdfkjgh]

@GloriousMane: I'm not familiar with that particular old standard, but then again, I'm not too hip to ancient proto-Russian drinking songs. I'm guessing it sounds a lot better in the original Old Church Slavonic.

[@gunzakimbo]

I love that song! Ladies and gentleman Mr. Elton John. xD

[@gunzakimbo]

@@sdfkjgh No South Park?

[@Ozraptor4]

Now to breed a Sturddlefish with five asses.

[@sdfkjgh]

@@Ozraptor4: tvtropes.org/pmwiki/pmwiki.php/Main/TwentyBearAsses or, I guess in this case, 5 fish asses.

[@apinakapinastorba]

- ”We need to crossbreed sturgeon and paddlefish.” -”Why?” -”...”

[@oranjmusemeyer968]

And fill up fish farms?? Why? Because they can.

[@icollectstories5702]

Exotic caviar? Might be the next too expensive-to-taste item

[@ltericdavis2237]

Caviar is a quite expensive thing, and harvesting it has been a big cause of decline in sturgeon populations. So, both to keep the species from dying, and make a nice buck, people have been trying to farm sturgeon, but they don't do well in captivity. The original attempt was just to see if they could increase the spawning rate by using the easier to work with paddlefish, but then these hybrids happened. So now they are likely to look into whether these hybrids would make better farm fish for cavier, in which case they can stop harvesting wild caviar and let sturgeon populations recuperate.

[@gamemeister27]

They were trying to get sturgeon babies that only had their mother's dna

[@BothHands1]

Brian CP the reason they wanted sturgeon fish with only their mother's dna is b/c males don't produce caviar. so causing them to breed only females would double profits.

[@AlexEMF]

My god, KZbin should've recommended this channel to me way earlier. I need the stuff.

[@mutantmaster1]

Humans: acording to these rules, these animals can't hybridize at all Nature: I DGAF, go for it

[@ngokumetsu4107]

I like how Nature is basically me when I DM games.

[@JaRayRepairs]

I've had the opportunity to be a part of research efforts involving Paddlefish. They are fascinating fish.

[@ianmacfarlane1241]

They speak very highly of you too.

[@Primalxbeast]

@@ianmacfarlane1241 lol

[@remliqa]

@@ianmacfarlane1241 Paddlefish can speak?

[@ianmacfarlane1241]

@@remliqa Just to me as far as I know, but give it a try - you never know.

[@1943vermork]

Ian Macfarlane The fish whisperer

[@Thoughtspresso]

I love Stefan's hosting, yknow? He's great!

[@sprinkhole58]

Those mice are pioneers. How do they survive? ...there's cheese in them there hills.

[@cjjuddaustralianartist]

I was thrilled, I really needed to know this, so changed my life.

[@twocvbloke]

Now if we could cross Salmon with a Whale, we'd never have to worry about the cost of salmon ever again, though, the bears fishing for them may be in for a shock... :P

[@ScionStorm1]

Would that be a fish or a mammal? Or maybe a _Mammish?_

[@sdfkjgh]

@@ScionStorm1: _Fishal._ Once we colonize other planetary bodies, we'll need to bring them with us as a food source, so they'll hafta be sent in an official fishal missile.

[@alphaundpinsel2431]

yes but how tf do you get a whale to nut in a salmon without poping it?

[@1943vermork]

Japan: hold my beer please

[@sirBrouwer]

@@alphaundpinsel2431 not you nut the salmon in the whale.

[@afeathereddinosaur]

3:33 Look at him go in the middle of the snow! I bet all he wanted was to be in a SciShow!

[@jakobraahauge7299]

Sturddlefish and high mini-mammals?! This episode is my favourite so far, and I have been a fan for a long 🍑 time! 😅

[@jayknight139]

I don't think I could catch a mouse with my bare hands in a low oxygen environment with out super powers.

[@ryantwombly720]

Can we get that guy who proved wolves can live on mice to figure out what the mice live on? I watched that movie like six times in junior high. Oo, plot twist: they live on tiny wolves.

[@jobriq5]

RIP tiny wolf brothers

[@sskiffy]

should've called it the straddlefish

[@sdfkjgh]

@Awezeptoo 97: Do you want Deep Ones? Because I'm pretty sure that's how you get Deep Ones!

[@jamesestrella5911]

It straddles the line, so to speak.

[@dynamicworlds1]

Opportunity missed!

[@LaGuerre19]

One thing's for sure: SciShow _loves_ to talk about their PNAS

[@JV-ft6jz]

Are these hybrid sterile?

[@DeRien8]

Fairly certain they are, but I can't figure out where I first read this story. And without a source, this holds little weight

[@noemirios7902]

From what I remember from my biology courses, Hybrids are sterile, that's why they're hybrids. While the offspring that is fertile is considered a separate species itself. Feel free to correct me if I'm wrong comment section.

[@WhatxDxDxD]

Probably? The hybrids are triploid(3) and pentaploid(5), later in the video it was mentioned that organisms with uneven numbers of chromosomes usually run into fertility problems. Still not a definitive answer.

[@xscaliersolid1194]

From what he said in the video, I don't believe that they are - at least, that's what he seemed to imply.

[@Ozraptor4]

We won’t know for many years since both of the parent species take more than a decade to reach sexual maturity.

[@Hexsyn]

So.... are we getting crime against nature caviar now? :p

[@linefortier8595]

They opened sturgeon female's belly whom are still alive to take caviar. I FIND THIS HORRIBLE (among a lot of nasty things against animals)

[@mme.veronica735]

@@linefortier8595 Well then have more ethical practices for struddlefish farms so wild sturgeons don't need to die

[@ExtremeMadnessX]

"Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."

[@natanoj16]

The forbidden Kaviar

[@linefortier8595]

@@mme.veronica735 Thanks. I saw that case in RUSSIA...I was scary

[@howdy4504]

"This hybrid shouldn't exist" all I hear is there's another new friend in the water :)

[@niyo2765]

The sturddlefish also takes the cake for the best hybrid name ever.

[@OMGitshimitis]

Finally a relatable animal.

[@EspressoTyme]

"Whoops, guess I made a chimera abomination!" -The guy who made the sturddlefish

[@The_Viscount]

Thanks for some fun news. Most news just breaks my heart these days.

[@fen4ri]

THE MICE LOOK SO FUNNY RUNNING AROUND UP THERE. They're like "What the heck! They said there were NO PREDATORS UP HERE! Now we have to move to an even higher mountain!"

[@user-cp6nn3my1p]

I will never ever ever need this information, but I'm weirdly glad I have it.Good job scishow

[@silvertheelf]

Those mice on top of the volcano have become immune to mortality.

[@Mtz2604]

Love your shirt!!

[@markpinther9296]

Collected 80 specimens, mice now extinct. Nice work!

[@amboo1003]

I'm surprised you guys didn't mention the triploid parthenogenic marbled crayfish while talking about the sturgeon hybrids.

[@nfrandom007]

Discovering something that shouldn't exist 🎵

[@dragon091327]

At first I thought the sign in the back was saying that the struddlefish was the worlds highest mammal. So I had to do the video in order to ponder on the idea that there was some sort of joke I was missing.

[@TheVigilante2000]

Dam, Frankenfish do exist. Imagine creating an animal that never existed before. Crazy.

[@sahb8091]

I love hybrids, I think it's one of the best pieces of evidence for common ancestry and so this video made me really happy.

[@ExtremeMadnessX]

"Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."

[@Jp-ue8xz]

I had no idea the highest mammal on earth lived in my country :D Granted, there's a lot of "high mammals" in downtown Santiago, but this one is epic

[@dominicsaavedra5113]

2:04 who do we appreciate? Scishow clap*clap*

[@JohnDrummondPhoto]

"... Up to now, no one's been able to make a sturgeon-paddlefish hybrid. And they've tried!" Wait. What? They've TRIED? WHY??

[@sansbazinga9821]

Cant wait to add this to my museum in Animal Crossing!!

[@biancap3943]

I wonder how the sex chromosomes differ between reptile species. If you aren’t aware, there a quite a few different species of reptiles that create fertile hybrid offspring, as well as hybridization between completely different genera. I’d like to see studies on that.

[@jamesestrella5911]

I want examples

[@patrickmccurry1563]

*genera

[@mkupcha3184]

I always thought that a paddle fish would be a bad doctor but good for him

[@jacksonhoppis]

Nice

[@gangpeng4076]

I have a suggestion for another video. Kangaroos can sometimes be considered to have 3 legs.

[@ruvadar]

All those poor mice that are going to die now that a human finally found them.

[@TheGremlinOfChaos]

most are invasive and cause destruction to the native ecosystem

[@alexmcd378]

Kira Kiona pretty sure the ones living in such harsh conditions aren't invasive.

[@TheGremlinOfChaos]

Alex McD most mice are actually invasive, some arnt but in most places ur common house mice are invasive

[@alexmcd378]

@@TheGremlinOfChaos completely agreed. But the literal top of a mountain isn't most places, and this wasn't the common house mouse.

[@tehDmez]

I literally read the article on this like 5 minutes ago, fuckin algorithm is going hard today.

[@andrewfrey6960]

I love that we can continue to do science!

[@VariantAEC]

Mouse abduction at 4:05 Definitely looks like they're slower than field mice at lower altitudes so slower metabolism is likely a key adaptation these scientists will "discover".

[@linefortier8595]

Hi, Stefan! Glad to see you. I LOOOOVE THIS CHANNEL...Good night from France and see you later, I'm tired

[@EeveeFromAlmia]

Humans being the ‘Highest ever mammal’ doesn’t sound right until you think about what humans are like for more than 2 seconds.

[@johnsteinat5213]

sturddle

[@patferrish4601]

I was just reading about these last night!

[@mybackhurts7020]

“ accidentally”

[@xcynicalreasonsx]

I love your shirt dude. I always have a good time when you narrate. How did scishow manage to find all the best speakers? 😍

[@neoncloud7]

I thought it said strugglefish and I was like "same"

[@GojosBackHand]

When will humans learn the universe plays by its own rules

[@Vespuchian]

What's that great line from Tyson? "The Universe is under no obligation to immediately make sense to you" or something?

[@YingofDarkness]

Never. Humans like to categorize everything and then are surprised when nature just decides to do its own thing.

[@ian_b5518]

"Collected".... so that mountain now has 80 less of what is thought are extremely rare high altitude mammals?

[@Sumtimreh]

Right? Like WTF does that mean?

[@alexmcd378]

There are strict guidelines for collecting living specimens. The fact they took them back means they found enough of them to not endanger the population by removing some. The narrator also said they found a lot.

[@YingofDarkness]

That was my reaction as well. Like bruh. Just get a couple, and then keep coming back to study them. They would already be battling food shortages, extreme temperatures, and the other issues with living so high up at least leave their populations alone. I get needing to get some of them for research but 80 seems like overkill.

[@leonardotheuseless4188]

@@YingofDarkness you act like mice breed slowly lol.

[@SamTheUndying]

Can't wait for the Mega Basking Mouth shark

[@sowjhanyak997]

0:45 wait how can that occur bcuz the maternal gametes only has haploid number of cells ... Usually its diploid right ?

[@richardorta8960]

To quote the mouse "Squeak."

[@SoNoFTheMoSt]

What an amazing video of the mouse:) what a lucky find :)

[@turtlejom]

I was half expecting some kind of joint-rolling mammal

[@calska140]

Thanks science for making another creepy lake and river monster. Sturgeon creep me out, especially when they almost dwarf my kayak.

[@pieeater555]

Sturddlefish is a pretty cool name tho

[@trixrabbit8792]

Can you do a video on the Dox? Most people say you can’t make a dog fox hybrid, but I’ve found documentation of Dox hybrids in England over the last couple hundred years.

[@shannonolivas9524]

What a coincidence, I was just telling my buddy about Sturddlefish hybridization last Wednesday.

[@Rakadis]

*Insert arbitrary Jurassic Park and The Fly reference*

[@squanchmastersquanch4376]

Ya. I read this yesterday in Genes as well. I thought it was pretty cool.

[@ewa690]

It’s like that song by Loverboy - “pigs and elephants DNA just don’t mix”

[@TheJunky228]

For the last year or so I've watched all scishow videos at 2x speed, normal just seems paced and spoken so slowly. 1.5 is probably more 'normal' but I tend to watch videos in general at 1.5 already

[@fleezyp]

I LOOOOOCE YOUR SHIRTTTT

[@ScottyDMcom]

When it comes to nature and limits, gotta be careful about what the experts say. For example I read in a book by a fox expert that the red fox _Vulpes vulpes_ doesn't live at altitudes above 9,750 feet (2,970 meters). A few years ago I was riding up the Pikes Peak inclined railway. The summit is 14,110 feet (4,301 meters). Anyway the rail people had put up signs indicating altitude in 500 foot increments. We had just passed the sign for 12,500 foot (3,810 meters) when I spotted a red fox playing in the meadow. *My conclusion? Foxes don't read the same books I read.*

[@ianmacfarlane1241]

I thought that the sturgeon/paddlefish hybrid was the World's highest mammal.🤔 Also nicely done - "researchers at P N A S" - I'd definitely have gone with, "researchers at PENAS"

[@camgood3097]

I love both of these stories, because they both clearly show that relying on the assumptions of mainstream science is never a good idea (nor is ever denying that something may be possible.. since Quantum physics tells us that there are a lot of "impossible" things going on all the time, in terms of ""conventional" physics..).

[@moragmacgregor6792]

Agree. If believe that in reality, few things are absolute. Better to express thIngs in terms of probability.

[@artemesiagentileschini7348]

Read Feyerabend, he basically coined this school of thought called Epistemological anarchism. With your exact definitions

[@alexmcd378]

But this is exactly mainstream science. They had a model that fit the existing data. Now they have data that is forcing them to reevaluate that model, so they're doing just that. Mainstream science working exactly like it's supposed to.

[@foxythunder481]

I need that shirt. lol

[@jaredj631]

Collected 80 samples! Are they trying to wipe them out at that Elevation?

[@brendakrieger7000]

Fascinating🐟

[@daltonbode6909]

Scishow: World's Highest Mammal Hardcore stoners: Challenge accepted

[@VincentGonzalezVeg]

Everything possible to happen in the universe even concepts of what can't happen, exist open slots to be filled in when an organism moves through time

[@curiousworld7912]

I live in an area of the country where Paddlefish exist and are considered endangered. There are laws to protect the fish from poachers who 'harvest' their eggs and sell as caviar - with some success. The fish still need to be restocked, and there are three or four hatcheries. I don't know whether this Sturddlefish is a good idea or not, but maybe they can become another source of caviar for people who actually think it's good and pay enough for it that poaching is worth the risk to some.

[@Anniehtv]

I appreciate the complete lack of anything covid related in this video.

[@danielclaw]

This reminds me of that one story about the humanzee thing where somebody tried to make a human/chimpanzee hybrid back in the 1920's or something.

[@kerduslegend2644]

Ahh... Yesss... Accidentally

[@anyoneofus9948]

It happens in nature too, have you ever seen a pinhead fish? It a cross of a sheepshead and a pin fish. I catch them all the time.

[@graff5138]

How are you still alive. Fish: I just kept surviving and it kept working

[@franceslambert8070]

Is it possible that the mice are able to live so high up is because 1) they are so small, 2) being lower to the ground gives them enough oxygen, and 3) like llamas and alpacas, and some Andean people they have become acclimated over the eons to less oxygen?

[@TheJunky228]

the only thing I want to point out is that the difference between oxygen concentration an inch off the ground versus 5 feet off the ground is negligible, at any altitude --so option 2 can definitely be disregarded lol

[@rosiebeauchêne]

I can’t believe I read the article before scishow posted a video on it hehehe

[@tolic14ever]

If you have access ti second study, advise to brind them food so they would grow in nr for them not to affect the general nr. *please, and thank you for great video

[@blitzwaffe]

I don't think it was a good idea to do these experiments in 2020...

[@refindoazhar1507]

From what i know about sturgeon and paddlefish, the fertilization must have been done a few years ago