I would probably say either a hippopotamus or a walrus. I'm not sure about the weight comparison there.
I know then fastest animal that lives on land is the cheetah, and in water it is the flying fish but I don't know the fastest animal that can live on land and in water is.....sorry : (
they are reptiles, reptiles can survive both water and land.
An animal that can live on land and water is called an amphibian.
Elephants are the largest land animal.
The largest land animal is an elephant!!
amphhibian
Amphibians
I think what you are asking for is amphibian. An animal capable of living both on land and in water.
The largest land animal in the world is the African Elephant.
amphibians - there are heaps
Amphibian
Turtles and Crabs
An animal that lives both in the water and on land is an amphibian.