@Kaarme
Yes, but those changes were gradual - like tens of thousands of years gradual.
There are always some animals that have survived a mass extinction event, but that doesn't guarantee that the descendants of those survivors could survive the next one especially when the conditions are different, and they have since adapted and specialized to the newer climate and environment.
Projected/estimated increase of average global temperatures now are much more severe, like what would have taken a thousand years now would be like a few decades.
This is what I mean by climate change being faster than biological adaptation.
Here's an easy to understand graph you could start with
https://xkcd.com/1732/
I won't claim it's definitive proof (It's a humor website, but the content is written scientists), but I hope our casual exchange make you think twice about your opinion on it (and maybe read some papers).