What Kinds of Animals Have Bellybuttons?

Do you know how you got your bellybutton? Humans get their bellybuttons from their moms’ umbilical cords. When it gets cut off, it leaves a little bit. That becomes our bellybutton.

What kinds of animals do you think get bellybuttons?

If you guessed mammals, you’re right. Although there are a few exceptions like monotremes, the other mammals get their bellybuttons the same way we do — from their moms’ umbilical cords. (A monotreme is a mammal that lays eggs, like the platypus.)

Some animals without bellybuttons are birds, reptiles, amphibians and fish.

Some animals with bellybuttons are tigers, lions, rats, cats, dogs and even whales.

Image from http://captainjohnboats.blogspot.com/2010/10/whale-watching-trip-october-23-2010.html