we truly are Walking With Dinosaurs
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  • 342 points Admirable-Leopard689

    The third one is incorrect. All birds are dinosaurs, but not all dinosaurs are birds.

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    84 points captain-carrot

    Fun fact. Dinosaurs were split into two main groups - saurischia and ornithischia.

    saurischia meaning lizard hipped and ornithischia meaning bird hipped.

    Weird thing is, birds evolved from therapods which were the saurichia (lizard hipped) dinosaurs.

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    10 points AppleSpicer

    That was a really fun fact! Also, how’s Ankh-Morpork these days? Still fighting crime?

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    85 points ers379

    No it’s actually correct, just like how all synapsids are humans because humans are synapsids. That dimetrodon fossil in a museum is literally just human remains that we don’t give a proper burial for some reason unknown to me.

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    43 points Prince_Ire

    Oh no, my house was built on an ancient dimetrodon burial ground!

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    15 points Learn1Thing

    They moved the Sailboats, but they never moved the bodies!!!

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    8 points d_marvin

    You had me in the first half of the first sentence.

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    26 points Lazy_Fae

    But they wish they could be.

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    17 points Bale_the_Pale

    Yes, all dinosaurs ARE birds.

    But not all dinosaurs WERE birds.

    It's all about the present tense.

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    4 points scarlet_sage

    Insert the "technically correct" meme here. Bravo! Or brava, or bravi or brave, as appropriate.

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    3 points zmbjebus

    All dinosaurs have birded

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    1 points Astralesean

    You can use present tense, both forms should be valid. The description of the nature of a creature no longer here doesn't change with time

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    10 points MagnusOfMontville

    all living dinosaurs are birds

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    6 points Fahkoph

    As far as we know. You know how we found the tuatara which is just an unassuming lizard-lookalike but actually isn't a lizard, but a sister family all together? I keep wandering if that'll ever happen where we find some sort of rough back iguana looking reptile on a hard-to-explore island and then run some tests and low and behold, this guys actually in the scelidosaurus lineage or somethin.

    I'm not like, holding out hope other dinosaur clades squeaked through, or anything, I just think if the Wollemi Pine can do it, who knows

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    10 points MagnusOfMontville

    I would love if we found an extant non-avian dinosaur

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    1 points Astralesean

    Do we even have any non theropod dinosaur that is small? 

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    2 points Fahkoph

    The closest we have proof of right now are ancient reptiles who were there next to and before dinosaurs. Crocodyliformes, rhynchocephalia, and testudines- or crocodiles and their kin, the tuatara, and turtles tortoises and terrapins. These things are not dinosaurs, but they are reptiles that lived alongside, and many of whom ate, dinosaurs. Supercrocs are honorary Dino's to many, some prehistoric snapping turtles were truly monstrous, and honestly the tuatara seems to have just always been in 'lil guy' niche, but his ancestors were 'lil guys' before and during dinosaurs. It did have a crazy aquatic uncle who shoehorned its family tree into mosasaur territory- so there's that.

    Edit: I now see what you meant, extinct not extant. Yeah, there were dozens of lil guys.

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    4 points Learn1Thing

    All squares are rectangles, but no Triceratops learned to fly.

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    1 points Any_Natural383

    True, but I find it helpful to compare them that way. It helped me understand that dinosaurs (especially giant theropods and sauropods) reached their massive sizes for the same reasons small theropods evolved flight.

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    1 points Confident_Action4915

    Was going to say this. Thank you.

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    1 points Ozark-the-artist

    Total group Aves technically includes all archosaurs closer to birds than to crocs, so even pterosaurs are birds in a sense

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    -28 points KingofTrilobites123

    Ok 👌

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  • 61 points MagnusOfMontville

    well they make for terrible lizards

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    35 points KingofTrilobites123

    https://i.redd.it/6c6mqgtfns7g1.gif

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  • 123 points Tehjaliz

    Birds are fish

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    30 points Kazeazen

    Erhm fish arent real /s

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    25 points Eden_ITA

    Fishes are like dragons.

    They are both an umbrella word for a big group of creatures often not so much related.

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    16 points Imaginary-West-5653

    https://i.redd.it/od0tu6ebts7g1.gif

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    8 points Eden_ITA

    We are all fishes with problems at the end.

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    3 points HC-Sama-7511

    It was a really upsetting day when I was confronted with the fact that whales can in fact be called fish. There is no reason they can't be.

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    10 points travischickencoop

    Honestly with how arbitrary taxonomy is anyway this is kinda how I view it

    Birds are reptiles and the category of fish doesn’t really exist

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    2 points Kazeazen

    Yeah i just recently learned that using fish as a way to describe creatures that live in the sea isnt necessarily accurate like how Eden_ITA states. I’m not a taxonomist by any means but i thought it was interesting and makes total sense! Learned it from a book named “Fish Dont Exist”

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    1 points Astralesean

    That said birds are still lobe finned fish, and humans aren't monkeys, but they're primates and great apes

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    5 points Tehjaliz

    https://preview.redd.it/o0gwnxzisy7g1.png?width=675&format=png&auto=webp&s=2eadeab836c365914b054b242325ee31205bae22

    The first monkeys appeared some 40 million years ago, and among them were our ancestors. Therefore we have evolved from monkeys and we still are monkeys like all other great apes.

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    2 points Astralesean

    Monkeys just like fish is not a cladistic term, however.

    What is cladistic is lobe finned fish, Sarcopterygians if you prefer ancient Greek terms, meaning humans are not fish, but they are lobe finned fish. Just like when you're in an interglacial period you're in an ice age still (we are still in the ice age). Or how everyone have the Prion Protein but you don't usually have a prion protein, aka a protein in its prionic form, which so far has only been the Prion Protein to do that. 

    Also you'll have a hard time explaining that we evolved from monkeys by saying from 40 million years ago, as nowadays people understand monkey to mean primate, not just simians. 

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    1 points zap2tresquatro

    monkey to mean primate, not just simians

    I think you might wanna fix that last line, since lemurs and lorises are primates/primates is the broader group and simian the narrower group that includes us. Maybe you meant what are called monkeys colloquially (the usually tailed simians/catarrhini excluding apes)?

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    1 points 2jzSwappedSnail

    Neither are birds, duh

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    4 points Prs-Mira86

    We’re all fish.

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  • 29 points Radiant_Effective725

    Third one is fake

    But the others are completely true

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  • 30 points Ulfmikel

    Wait untild bro discovers whales ARE fish

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    7 points Royal_Acanthaceae693

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    4 points Astralesean

    Unless you consider only cartilaginous fish to be fish, then whales are not fish (neither are trouts, salmon, etc) 

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    2 points GP400jake

    I assume (like most people).. when referring to fish, bony fish are the type that is implied

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  • 10 points ThenAcanthocephala57

    Are we descendants of reptiles and amphibians (Edit: fish) or are we them? 🤔

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    24 points ShaochilongDR

    We are not descendants of reptiles or reptiles.

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    6 points ThenAcanthocephala57

    Fixed

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    11 points Swolenir

    Humans are in a clade in which the common ancestor was a fish. It existed about 375 million years ago and was also the common ancestor of all land animals. By most modern definitions it would be considered a fish. But a fish is kind of a hard thing to define. So it would not make sense to say all humans are fish, but it would make sense to say that all humans are descended from a fish.

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    1 points FourTwentySevenCID

    This depends on which kind of taxonomy we are talking about. Its a really fascinating thing and I'd suggest reading up kn it beyond reddit answers. 

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  • 9 points Lazy_Fae

    Can I finally say that I'm a monkey?

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    16 points TheStoneMask

    All apes are monkeys, but not all monkeys are apes, yes.

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    6 points Imaginary-West-5653

    https://i.redd.it/g66r4yapts7g1.gif

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    11 points LukeChickenwalker

    I’m down with that. Let’s embrace our inner monkey.

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    2 points Astralesean

    Before embracing our inner monkey we have to embrace our shrew like true mammalian form

    And before that our fish 

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    5 points 1Negative_Person

    You are a monkey. We are all monkeys.

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    1 points zap2tresquatro

    Yes, as if new world monkeys and old world monkeys are monkeys, then apes (more closely related to old world monkeys than either are to new world monkeys) are also monkeys. Or “monkey” is a paraphyletic term and meaningless taxonomically in which case anyone correcting you saying “um ackshually apes aren’t monkeys/were apes, not monkeys” is pointlessly arguing about a completely arbitrary distinction that isn’t based on ancestry but instead on “these catarrhines have (significantly functionally/morphologically different) tails!”

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  • 5 points ThrowRAwriter

    laughs in placoderm

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  • 8 points ConsiderationFun3671

    Birds and reptiles are VERY close genetically. They poop the same, they have the same reproductive organs, for the most part, and they both lay eggs.

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    11 points 1Negative_Person

    But that’s not why they’re reptiles. They are reptiles because they are literally dinosaurs. They share a more recent common ancestor with crocodilians than crocs do with lizards. So if lizards are reptiles and crocs are reptiles, then bird must be.

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    -1 points Sofie_2954

    I think it is good to distinguish between birds and other reptiles, because it would be pretty confusing if there wasn’t any distinction between different reptiles.

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    4 points 1Negative_Person

    Why would it be confusing?

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    -2 points Sofie_2954

    Because there are many birds, but manny more reptiles, and it would be very hard for birdwatchers to see all species if they also had to count all other reptiles.

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    8 points 1Negative_Person

    There are as many species of bird as there are in all of squamata (all lizards including snakes) so, no, there aren’t “many more” nonavain reptiles. There are slightly more nonavian reptiles. Birds are the most species rich clade within reptiles. Why would birdwatchers need to count all other reptiles? That would be like a snake enthusiast needing to count every lizard. Snakes are lizards, but not all lizards are snakes. Birds are reptiles, but not all reptiles are birds.

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    -1 points Sofie_2954

    Ok

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  • 7 points SkisaurusRex

    Reptilia is paraphyletic. Sauropsida is better.

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    9 points 1Negative_Person

    It’s not paraphyletic if you make it a monophyletic group by including birds like you should.

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    6 points kinginyellow1996

    And like someone did 40 years ago!

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  • 2 points wiz28ultra

    There's something hilarious about the fact that the official name for the Crocodile-Bird nested clade is just "Ruling Lizards", like even in the 19th century people were well aware of just how badass Crocodiles & Dinosaurs were and they just thought of modern-day lizards & snakes as an afterthought by just calling them "scaled lizards".

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  • 2 points Acceptable_Visit604

    In fact yes

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  • 2 points 1Negative_Person

    All birds are dinosaurs. All dinosaurs are not birds.

    Other than that, yes, correct- birds are reptiles.

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  • 2 points Short-Being-4109

    But not all dinosaurs are birds. You're right other than that

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  • 2 points Ok_NidoKing

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  • 2 points 69nutmaster

    aves are theropods

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  • 2 points stardust0771

    All earth life are water carbon and oxygen based beings who are derived from a common single celled ancestor from the ancient primordal soup.

    https://preview.redd.it/04o7w2coy18g1.jpeg?width=720&format=pjpg&auto=webp&s=eee92959756ea76ebdec11bbcdb8a58665b8d21f

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  • 2 points Josieqoo

    You can't evolve out of a clade. Technically we're all fish.

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  • 2 points oniluis20

    There are no reptiles phylogenetic speaking

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  • 2 points rkirbo

    This

    And either fishes don't exist, or we are fish.

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  • 1 points disturbinglyquietguy

    All tetrapods are terrestrial fish.

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  • 1 points KaraOfNightvale

    Birds are, infact, reptiles, yes

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  • 1 points Spinel_of_Lignano

    3 is the other way around

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  • 1 points NitzMitzTrix

    Every land animal's either a bug, a worm, a fish or a snail by some definition

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  • 1 points Zestyclose_Limit_404

    I guess you could say we live on a…….

    Dinosaur Planet 

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  • 1 points Centiplix

    The tirth one is wrong, all birds are dinosaurs, but not all dinosaurs are birds

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  • 1 points S7AR4RGD

    Humans are technically dromeosaurids so..

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  • 1 points retecsin

    Whales are fish 🤯

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  • 1 points Tylos_Of_Attica

    Final Truth: Everything’isa Fish, except Fish

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  • 1 points Akavakaku

    “Bird,” “reptile,” “fish,” etc. are common names, so they don’t have to be phylogenetic clades.

    If common names had to be clades, sharks would be worms, wolves would be foxes, ants would be wasps, and sea anemones would be coral.

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  • 1 points Heroic-Forger

    broke: whales are fish

    woke: whales are not fish, they are mammals

    bespoke: mammals are fish, so whales are fish

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  • 0 points AutoModerator

    Join the Prehistoric Memes discord server! Now boasting slightly more emojis than we had this time last year!

    I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

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  • 0 points No_Somewhere5202

    The third photo is Fakenews,All Dinosaurs is not birds but All birds is Dinosaurs

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  • 0 points No-Dents-Comfy

    We all are fish.

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