Yes, dolphins are mammals.
mammalia
Dolphins are in the class Mammalia.
Mammalia is the class; Tursiops is the genus; so, Tursiops.
No, All animals are in the same kingdom... The animal Kingdom. ---------------------------------------------------------------------------- However I think what you mean is that Dolphins are Class Mammalia (the are mammals), while sharks are Class Chondrichthyes (they are cartilaginous fishes)
Elephants belong to the class Mammalia.
A bull belongs to the class Mammalia.
Kangaroos are mammals, so they are in the class mammalia. They are marsupials, and macropods.
The grey wolf is in the class Mammalia.
They belong to the class Mammalia ( mammals).
The phylum of whales is Chordata, which means it has a backbone. The class of whales is Mammalia, meaning it is a mammal. The order of whales is cetacea, which includes the whales and dolphins.
Bottlenose dolphins are in the mammal kingdom.
Marsupials are mammals. They belong to the class Mammalia.