Whales, dolphins, porpoises, manatees, dugong, seals, walrus, and some otters. Characteristics are: Generally have a large size, hydrodynamic body (can go through water easily), and all the species have different marine life adaptions. They also have the characteristics of regular mammals. The cetaceans (Whales, dolphins and porpioses) and sirenians (manatees and dugong) are the most adapted. They spend no time out of the water; whereas the other species spend a little time on land.
yes.
NO!
it is a mammel
If you mean hippo it is in the mammel family a mammel is a animal that breaths air gives milk to its kids is warm blooded don't make eggs For example a dog or cat is a mammel
whale.
Yes.
Humans...
mammel
it is a mammel
Yes.
No, they are Rodents
elephant