Kangaroos can be the size of a rat or as tall as a man.Baby kangaroos (joeys) are born as small,hairless babies that climb into the safety of their mother's pouch,where they continue to grow and suckle.Kangaroos live throughout Australia,Tasmania,and New Guinea.They eat grass,leaves,roots,and some flowering plants.Some kangaroos chew their cud to break down the acid in their diet.Kangaroos prefer to live alone or in family groups called mobs.When sensing danger,they will beat their tails on the ground and leap suddenly,scattering the mob.