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. 2022 Jan 10;32(1):R42-R44.
doi: 10.1016/j.cub.2021.11.049.

Evolution: Back to heavy bones in salty seas

Alexandra Houssaye  1
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Evolution: Back to heavy bones in salty seas

Alexandra Houssaye. Curr Biol. .
Free article

Abstract

In amniote vertebrates that transitioned from land to sea, bone mass typically increases and later decreases as active swimming evolves. A new study now has found that heavy bones re-evolved in some fossil marine mammals, suggesting that this trajectory can be reversed.

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