Koalas are Marsupials, which is a type of mammal. A Koala's closest living relative is a Wombat. It's diet mostly consists of eucalyptus leaves. Two of a Koala's favorite activities are: sleeping and eating.
Red Kangaroos are the largest marsupial, they can weigh up to 200 pounds! Kangaroo's pouches are called marsupiums, but only female Kangaroos have them. When a kangaroo is first born, it is about the size of a jellybean!
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