Birth: usually one joey (about 1 inch at birth) * female isolates herself before birth * Birth position - sitting on base of tail with tail between legs * Takes 2 minutes for joey to crawl to the pouch * pouch contains 4 mammae * joey attaches to nipple for 90 to 100 days, at 250 days joey looks out, at 300 leaves pouch for first time, at 350 leaves pouch permanently * long pouch life compared to other kangaroos