ISB 4 - ISB 452011 What are Placental Mammals? Carry their...

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ISB 4-5-2011 16:47 What are Placental Mammals? Carry their infant inside of them Ancient bears lived along the coast, and began to go into the water, and evolve traits  that would help them swim
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ISB 4 - ISB 452011 What are Placental Mammals? Carry their...

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