Marsupials appear to have a good birth delivery system with no chance of death in childbirth for either mother or babyt. Why did the marsupial system become largely confined to Australia, while placentals became worldwide - what is more efficient in carrying an embryo in the body as opposed to in a pouch. Plus, the pouch provides an excellent carrying device for the mother freeing her hands (paws) for other things, and protecting the the baby
2007-03-01 17:50:35 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
Good question.
My answer would be efficiency. The marsupial method is very slow. The young start off really really tiny and stay in that pouch for quite a long time.
2007-03-02 07:27:48 · answer #1 · answered by rob1977nc 6 · 0⤊ 0⤋
Because the male of the species likes to suck on the breastseses!
2007-03-03 03:46:24 · answer #2 · answered by Kenneth H 3 · 0⤊ 0⤋
Since marsupials ( ex: kangaroos, opossums) are thriving, I don't believe they have, but please enlighten me if I'm wrong. While you're at it, how about reptiles & anphibians?
2007-03-02 02:10:11 · answer #3 · answered by shermynewstart 7 · 0⤊ 1⤋