Dolphins are mammals. They are warmblooded and produce milk to nurse their young .
A dolphin is a mammal.
A dolphin is a mammal.
MAMMAL
a dolphin is a mammal
Because it is. There's not really a "why". If you mean "what are the characteristics of a dolphin that show that it's a mammal and not a fish or amphibian", it's warm-blooded, produces milk, and gives birth to live young.
A dolphin is a (marine) mammal. I could see why you may have thought amphibian, however an amphibian is more of a frog/lizard species.
A dolphin is neither reptile, amphibian, or fish. It is a mammal. It comes up to the surface of the water to breathe air through it's blowhole.
Dolphins are classifiedas mammals. They give birth to live young.
A "dolphin" is a mammal.
A dolphin is a mammal.
Shark is to fish dolphin is to mammal.
Newt is an amphibian