Name three major groups into which mammals are divided, Biology

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What are the three major groups into which mammals are divided?

The three groups into which mammals are divided are: monotremes (or prototherian, e.g., platypus), marsupials (or metatherian, for example, kangaroos) and placental (or eutherian, like humans).

Mammalian Review - Image Diversity: mammals monotremes marsupials placentals

 


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