Neither. Crabs are crustaceans.
Mammals have fur or hair, are warm blooded and give birth.
Amphibians are cold-blooded, lay eggs and have an internal skeleton with soft skin.
Crustaceans are cold blooded, lay eggs and have an external skeleton (shell).
Ocean crabs are not amphibians, they are crustaceans. Body crabs (crab lice) are also not amphibians, they are arachnids.
Whales are aquatic mammals, not amphibians.
Their diet includes invertebrates (such as insects, spiders, earthworms, snails and crabs), fish, reptiles, amphibians, birds and small mammals.
Bisons are mammals.
No, treefrogs are amphibians, not mammals.
Mammals.
They are mammals.
no salamanders are amphibians mammals have hair, amphibians do not
Amphibians are naked while mammals possess hair on skin .
they are both
No. Crabs are crustaceans, not amphibians.
Dolphins are mammals.