Like Black Bears , they live in a wide variety of habitats , including the deserts . It has been determined that the origin of the mule deer is from black tail bucks breeding with white-tailed does . It may migrate in response to rainfall . Mule deer mate in November and December with the antlered males fighting for possession of the females . Mule deer have a multi-part stomach , which aids in the digestion of the plant matter they consume . Mule deer browse on a...











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