Female kangaroos can determine the sex of their offspring. They can even delay gestation when environmental factors could inhibit survival. Kangaroo Facts and Information. Anatomy, feeding, reproduction, habitat and more. Amazing and interesting facts about the Australian red, Eastern grey and Western grey kangaroo. Learn all about how they care for their baby joeys in their. Red Kangaroos are the largest marsupial and can grow up to 2 metres. Kangaroo Information And Facts For Kids. Fighting has been described in all species of kangaroos. A young joey will remain attached to a nipple while the mother does gold gate, but any older ones will be temporarily kicked. For the kangaroo as a food, see Kangaroo meat.