These seals haven’t lost their land ancestors’ hunting ways
Having claws instead of smooth flippers lets ‘true seals’ grasp prey

SEAL MEAL A harbor seal digs its claws into a salmon. Sea lions and some other seal species have sturdy flippers instead of paws, and so can’t grasp prey in this way.
D.P. Hocking et al/Roy. Soc. Open Science 2018
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