Bisons are mammals.
Whales are aquatic mammals, not amphibians.
no salamanders are amphibians mammals have hair, amphibians do not
No, treefrogs are amphibians, not mammals.
They are mammals.
Mammals.
Yes- they are mammals, all mammals are vertabrates.
Amphibians are naked while mammals possess hair on skin .
Dolphins are mammals.
No. Bison are mammals, which means they would have an endoskeleton.
no, there amphibians.
Dinosaurs are more closely related to mammals. Both mammals and dinosaurs share a reptilian ancestor that they don't share with amphibians.
They are mammals.