Mammals
No, mammoths were land mammals, related to modern day elephants, and dolphins are marine.
Humans, dogs, pigs, cows, horses, dolphins, possums, and elephants are all placental mammals but there are others as well.
Elephants are mammals.
Elephants are also mammals.
Dolphins are mammals
Dolphins are mammals.
Dolphins are mammals
Yes dolphins are mammals
All dolphins are mammals
Sharks are fish. Dolphins are mammals.
Dolphins are mammals who eat fish.