The Red Kangaroo has a pouch, that, we all know that. Most of us are aware that it is a marsupial as well. But do you know that a baby kangaroo is, at first, smaller than a cherry? Also they can grow sizes up to 3.5 to 5.5 feet and they can weigh up to 200 lbs. No wonder they're so jumpy! Also, they sometimes have fights to see who's the BOSS.