It is a mammal because of the blowhole on it's head. Amphibians do not have blowholes. Even though dolphins are aquatic they are mammals because they breathe air. Dolphins cannot breathe underwater or they will drown. Mothers help newborn dolphins to the surface so they can breathe. Everything that is aquatic or breathes air ONLY is a mammal.
No, a Horse is a mammal.
Amphibian
A frog is in fact an Amphibian
A raccoon is a mammal and is a vertebrate.
Amphibian
A dolphin is a mammal.
A dolphin is a mammal.
No, a dolphin is a mammal, not an amphibian.
MAMMAL
a dolphin is a mammal
It's a mammal
No, dolphins are in the mammal category
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.
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.
no a dolphin is a mammal and it does not lead an amphibias life style, it spends its entire life in the water
The only thing I can imagine you are asking about is a Bottlenose dolphin, and it is a mammal.
Dolphins are classifiedas mammals. They give birth to live young.