2006-09-06 02:45:50 · 5 answers · asked by HippoHugger 1 in Science & Mathematics ➔ Zoology
yes -- any animal which has an umbilical cord to receive nourishment from the mother before birth will have a bellybutton. thus all mammals (including hippos) have bellybuttons. reptiles, fish, birds and invertebrates do not have bellybuttons.
2006-09-06 02:51:21 · answer #1 · answered by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6 · 0⤊ 0⤋
I think you must have read the " Belly Button Book (Boynton on Board S.)"! Sounds great even if I'd never heard of it until I searched your question...hippos have belly buttons and so do all mammals That's because of how they're born...remember that humans are mammals too and the umbilical cord, when cut, becomes a belly button. I imagine that's why marsupials don't have one, since they crawl out of their parent and into a pouch...can't see the need for a belly button there!
2006-09-06 09:59:07 · answer #2 · answered by zebedee 2 · 0⤊ 0⤋
Marsupials have belly buttons. All mammals have belly buttons. Even if you were hatched, you would have a belly button. Embryos receive nutrients thru an umbilicus. Even tho the yoke sac is completely absorbed, there is a faint belly button. So almost every mammal and animal/ reptile has a belly button. Plants and insects don't. Fish do.
2006-09-06 12:46:20 · answer #3 · answered by golden_retriever4u 2 · 0⤊ 0⤋
Yes all placental mammals do.
2006-09-06 09:51:37 · answer #4 · answered by Anonymous · 0⤊ 0⤋
:-)
Yes, and I'll bet you have the book below:
2006-09-06 09:49:04 · answer #5 · answered by Mr. E 5 · 0⤊ 0⤋