Monday, 20 March 2017
Newborn Baby Grey Kangaroo - Attenborough - Life of Mammals - BBC
Marsupials are mammals that don't have a developed placenta. Marsupials have a very short gestation period and the joey is born in an essentially fetal state. These complete their development inside the mother's pouch. Once in the pouch the embryo climbs up their mother's body in search of a mammary gland to feed on. Some species of joeys stay in the pouch for upto a year or until the next joey is born. This fascinating video will show you how the undeveloped embryo is born and how it lives in th pouch. Kangaroos and koalas are marsupials as well as rat kangaroos and possums.
Posted by S. Bastian