Discoveryのインスタグラム(discovery) - 8月14日 23時27分

Evolution of sharks can be traced back over 400 million years. One of the most famous extinct sharks is Carcharodon megalodon. This animal, which lived in the seas 10 million years ago, easily dwarfed modern white sharks. Its skeleton was made of cartilage, but its fossilized teeth survived the test of time. The Museum’s iconic Carcharodon teeth—on view in the Hall of Vertebrate Origins—were found in North Carolina.

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