All mammals share at least three physical characteristics; hair, three ear bones (incus, malleus, and stapes) and the ability to produce milk. They are one of the most diverse classes of animals in the world with an enormous range in size, dietary preference, and behavior. Below one will find skull replicas of fossil mammals from the late Eocene to the early Pleistocene, including several genera of saber-toothed cats, a cave bear, a fossil hyena and a wooly mammoth.

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