9 Animals That Have Drastically Changed From Their Ancient Forms
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9 Animals That Have Drastically Changed From Their Ancient Forms
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Evolution rarely works in straight lines, and it almost never happens quickly, but given enough time, the changes it produces can be staggering. Plenty of animals alive today share barely any resemblance with their earliest ancestors and relatives: the fossil record includes dog-sized horses, four-legged whales and snakes with proper hind legs. Here are ten animals whose family trees look almost nothing like the species we recognise today.