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Evolution isn't linear.
(mander.xyz)
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this post was submitted on 28 Apr 2024
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Isn't Chicken the closest living relative but not a descendant of T-Rex?
Yup, the T. rex is just extinct, chickens are the closest thing genetically speaking (or one of the closest, I'm not sure).
Same reason why humans don't actually descend from monkeys, both monkeys and humans descend instead from a common ancestor that no longer exists. This is why, IMO, Digimon could be a better representation of evolution than Pokémon, since one Digimon can evolve into many different forms, so that kitten could become a fridge, but also a dragon or a knight with cannons, depending on the evolutionary line.
Then again, I doubt any of these were intended as a realistic portrayal of anything at all, least of all the theory of evolution.
Chicken is equally close to T. Rex as all other birds. They all go back to the same common bird-ancestor who was a relative of T. Rex.
T. rex is more closely related to birds than to all non-theropod dinosaurs.
T. rex also lived closer to us in time than to Stegosaurus.
But that ancestor was a monkey! We are monkey, you can't evolve your way out of a clade.
But that is specifically not how evolution works. You can't evolve your way out of a clade, everything a cat would evolve into, would also be a cat. Maybe a weird cat, maybe a whale-cat (like whales are still ungulates, even if they are really weird ones) but still a cat. You can't evolve out of your ancestry.
I mean, monkeys are an evolutionary group. Technically, we are monkeys, as well as being apes, hominids, mammals, humans, tetrapods, etc.