Both are tetrapods and belong to super class Tetrapoda .
Whales are aquatic mammals, not amphibians.
Fish are not alike to mammals
no salamanders are amphibians mammals have hair, amphibians do not
Mammals.
They are mammals.
No, treefrogs are amphibians, not mammals.
Bisons are mammals.
Amphibians are naked while mammals possess hair on skin .
Dolphins are mammals.
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 have backbones