Name of that four legged mammal who give birth in water?

Question

Name of that four legged mammal who give birth in water?

Answer 1

Platypus

Answer 2

otters nest & lead the young to the water later, the pups are blind,

frogs spawn which grow to be tadpoles then frogs

hippos are on the mark tho

Answer 3

Hippopotamus,,,both Pygmy and River.

Not All the time,,,and more often for River Hippos than Pygmies

Answer 4

i think its frog

Answer 5

sea otter?...idk...

Answer 6

a swimming elephant ....hehe..lol

Answer 7

sea otter !!!

Answer 8

ummmm??? could it be..............a....

COMMON HIPPO.......????