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The American cave lion was a big kitty that died at the end of the Pleistocene because there were no more glaciers for it to eat

The American cave lion was a big kitty that died at the end of the Pleistocene because there were no more glaciers for it to eat | image tagged in panthera atrox,american giant cave lion,prehistoric fauna | made w/ Imgflip meme maker
127 views 1 upvote Made by Modda 4 months ago in Prehistory_stream
16 Comments
0 ups, 1mo,
2 replies
It was found to have developed an anatomy similar to that of jaguars (Panthera onca) via convergent evolution.
0 ups, 1mo
Its also known that it evolved from Cave Lions (Panthera atrox).
0 ups, 1mo,
1 reply
No, Panthera is their genus, they share similar anatomy because they share a common ancestor. The speciation away from each other is a divergence.
0 ups, 1mo,
1 reply
Yes I know that. However species amongst a genus can have a certain level of morphological anatomy. And sometimes they develop similar anatomies to one another via convergence. Another example is the Cave lion (Panthera spelea), who is anatomically similar to tigersband even developed adaptations to the cold like them, yet they are closer to lions (Panthera leo). In reality the ancestral Panthera cat most likely reseambled a leopard (Panthera pardus).
0 ups, 1mo,
1 reply
They're similar because they're closely related. What part of "Panthera" did you not understand?
Yes, the larger ones kind of resemble each other more than they do the smaller ones, and the ones that live in colder climate also share certain characteristics that those in the tropics have less of.
0 ups, 1mo,
1 reply
"Yes, the larger ones kind of resemble each other more than they do the smaller ones, and the ones that live in colder climate also share certain characteristics that those in the tropics have less of."

Those are examples of convergent evolution within a genus. Thats my point.
0 ups, 1mo,
1 reply
No
Their origins were where again? That's right, colder climes, Northern Asia. From there they radiated, and those ending up in the tropics diverged further in morphology in order to adapt to that climate. The common features of the big northern cats came from their common ancestor.
0 ups, 1mo,
1 reply
Not quite. Its unknown where Panthera cats originated (though its hinted they likely originated in Asia). The ancestor of tigers and snow leopards originated in colder regions, hence why both tigers and snow leopards (snow leopards specially) have adaptations for the cold. The Cave lion also shows adaptations for the cold. The american lions and lions, its closest relatives, dont have cold adaptions. Neither jaguars or leopards, its second closest relatives. Suggesting convergent evolution, for the ancestor of lions, leopards and jaguars was likely hot adapted.
0 ups, 1mo,
1 reply
"The american lions and lions, its closest relatives, dont have cold adaptions."

Um, what? Even African lions do, and let's say they didn't originate in Asia, let's say they originated in Africa like you're pretending, how did they get to North America, by plane? American lions and closest to cave lions. For a reason. Do you know where they lived also?
0 ups, 1mo,
2 replies
African lions are adapted for the heat.
Never said lions specifically originated in Asia, I said ancestral Panthera cats.
African lions never went to North America. It was Cave lions, who then evolved into American lions.
0 ups, 1mo,
1 reply
You have a bad habit of repeating what I said while pretending it's some sort of argument against what I said.

I will not reply to any more reiterations of what I stated.
0 ups, 1mo
Point is, convergent evolution can occur within a genus.
0 ups, 1mo,
1 reply
Point is not that various species of lions originated separately then converged morphologically. That strange assertion is silly.

Speaking of silliness, this begins to bore me a lot?
0 ups, 1mo
There are no lion species. The only true lions are Panthera leo. P atrox and P spelea are their own species, related to P leo.
P spelea and P onca convergently developed anatomical traits similar to tigers and P atrox specifically developed anatomical similarities to P onca.
0 ups, 4mo
https://cs14.pikabu.ru/post_img/big/2023/01/11/1/1673393234150064958.jpg
0 ups, 4mo
https://cs14.pikabu.ru/post_img/big/2023/01/11/1/1673393234150064958.jpg
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