Trái đất nóng lên, muông thú nhỏ đi
Cập nhật: 14:41 21/10/2010 GMT+7
Một nghiên cứu đăng trên Tạp chí Journal of Mammalian Evolution đã cho thấy cách đây 55 triệu năm Trái đất đã từng xảy ra đợt nóng lên toàn cầu và một số loài thú ăn thịt đã phải giảm kích thước xuống còn một nửa so với tổ tiên của mình.
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