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[Free Registration/Login may be required to access all resource tools.] Mammals don't typically lay eggs, but monotremes are the exception. All other mammals give birth to live young and belong to one of two categories, the marsupials and the placental mammals. Learn more about mammal reproduction in this learning module produced by CK-12.
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- Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)