How do baby kangaroos survive in thier mothers pouches?

This is a might involved but I'll try to keep it relatively simple. When it's time for Mom to have her little one, she does so the same way all other mammals do, lly. While she's laying there recovering, her little one (who is about the size of a peanut at this point) wiggles and squirms his way through her fur until he gets to her pouch. How he does this considering he cannot see, science isnt yet sure. I personally think he can smell the milk from her teats and he just follows his nose. Anyway once he gets inside her pouch, he noses around until he finds one of her teats and then he attaches himself to it and stays in that pouch and just grows and grows and grows until he's big and strong enough to stick his cute little head out of the pouch and say hello to the outside world. By this time he's strong enough to be able to walk around on his own so he occasionally gets out to play just like all other little ones would but always sticks close to mom so he can jump back into the pouch at the first sign of trouble. Eventually he's old enough to try solid foods but he stays with mom until he's big enough to fend for himself at which time the two part ways so mom can get ready for her next joey. I hope this helps.