A global warming event about 50 million years ago led tiny ancestral horses to decrease in size by about 20 percent, new research suggests. This was the second instance in which warming caused decreases in mammal body size.
A global warming event about 50 million years ago led tiny ancestral horses to decrease in size by about 20 percent, new research suggests. This was the second instance in which warming caused decreases in mammal body size.
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