many
elephants
whales
dolphins
tigers
lions
ect ect ect
I guess the wooly mammoth, which is extinct.
Otters could become extinct but there is a chance they might be recovered.
Gorillas are not extinct yet, but it could happen soon if they are not protected properly.
There is no such thing. No bird is or ever was a mammal.
The oldest extinct mammal is one that lived among the dinosaurs. There are new mammals that are being discovered regularly.
mastodon
black ppl
No, a helicoprion is an extinct fish.
yes, it may be extinct soon.
The Saber-toothed Tiger is an example of an extinct mammal. It was about the size of a modern day Lion. It once roamed the grasslands and forests of North and South America.
Any creature can go extinct, but this mammal is currently abundant.
because of the meteor