Need for speed led to seal swim evolution – Riverine Herald

Melbourne researchers have shed new light on the evolutionary mystery behind why some seals and sea lions swim differently from others.Unlike feet-propelled grey and harbor seals in the northern hemisphere, Australian-based fur seals and sea lions use wing-like front flippers for swimming.
Biologists originally thought the forelimb and hindlimb propelled seal groups evolved from separate land-dwelling ancestors, but genetics has since disproved the theory.
In the search of answers, Monash University…

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