Marsupials resemble mammals in a number of ways. For one thing, they are warm-blooded creatures. They have hair, and the mothers feed their young by producing milk. However, one thing that separates marsupials from mammals is that their young are born when they are not yet fully-developed. Most are born after only about four or five weeks. They finish their development in the pouch of their mother. Some of the more commonly known marsupials are koalas, kangaroos, and opossums. They are a diverse group, with many members having little in common besides their reproductive traits.A major difference between marsupials and mammals is

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