Question

With their lack of gills, dolphin must surface every 10-15 minutes to breathe using a structure called a blowhole located on the top of its head. Young dolphins, when born, also have a small amount of hair on their lips which falls off shortly after birth. Which would be the best classification group for a dolphin?

Answer 1

Possibly an aquatic mammal

Answer 2

A mammal because they have hair and have to breathe oxygen. They also give birth like humans do (without an egg)