Answer:
The climate changes from cold and arctic to a warmer, milder climate. This change resulted in the extinction of the great mammals such as the giant sloth, mammoth, and American lion.
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Their melting water flows into the soil which affects vegetation which acts as food for animals at lower altitudes, some of which are prey for other animals and so on. ... As glaciers melt large deposits of sediment are deposited in valleys below. This affects the local land and rivers and their existing ecosystems
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