... after all, *we* do...
2006-06-20 19:38:58 · 11 answers · asked by iwannaholiday 1 in Science & Mathematics ➔ Zoology
Placentarian mammals do (not the platypus or equidna)
2006-06-20 21:22:42 · answer #1 · answered by Oona 3 · 2⤊ 1⤋
Only animals that were attached to their mother via an umbilical cord. Not all mammals fit that description. The platypus and the spiny anteater are examples since they were hatched from eggs.
2006-06-25 15:10:47 · answer #2 · answered by ATP-Man 7 · 0⤊ 0⤋
Mamals
2006-06-21 02:41:52 · answer #3 · answered by nasonguy 3 · 0⤊ 0⤋
not in the same sense we do but mammals are born with an umbilical cord so in a way they do have a belly button
2006-06-21 02:42:36 · answer #4 · answered by pepsi12383501 2 · 0⤊ 0⤋
Well mammals have umbillical cords when they're born (if that's how you spell it) so I imagine they would have a mark of sorts, just not as obvious as ours.
2006-06-21 02:43:14 · answer #5 · answered by Clueless 3 · 0⤊ 0⤋
only the mamals belly bottons show where are inbelical cords were. meaning animals born from eggs dont need them.
2006-06-24 23:03:01 · answer #6 · answered by docterwannabe 1 · 0⤊ 0⤋
All mammals except the platypus !
Give me my 10 points
('',)
Peace
2006-06-21 02:57:24 · answer #7 · answered by Jolly Roger 3 · 0⤊ 0⤋
I think it's just a "mammal thing"... Birds and bees don't have them so why do we?
2006-06-21 02:42:38 · answer #8 · answered by anonfuture 6 · 0⤊ 0⤋
Only mammals do.
2006-06-21 02:42:28 · answer #9 · answered by Anonymous · 0⤊ 0⤋
they're navals in case you didn't know.
2006-06-21 02:47:24 · answer #10 · answered by Anonymous · 0⤊ 0⤋