Peruvian fossil challenges blue whales for size

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Peruvian fossil challenges blue whales for size
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An ancient, long-extinct whale could have tipped the scales at close to 200 tonnes, scientists say.

Eighteen bones were recovered from the marine mammal - an early type of whale known as a basilosaurid. These included 13 vertebrae, four ribs and part of a hip bone.

These weren't features of disease, the team said, but rather adaptations that would have given this large whale the necessary buoyancy control when foraging in shallow waters. Similar bone features are seen for example in modern-day manatees, or sea cows, which also inhabit coastal zones in certain parts of the world.

Nicknamed Hope, this animal's skeleton took pride of place at the institution when it was hung from the ceiling in the main hall in 2017.

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