RedSonGamble t1_j0j0cng wrote
Reply to comment by Fetlocks_Glistening in TIL that humpback whales have powerful flippers covered in sharp barnacles which they use as weapons to defend their young and fight off predators such as orcas and sharks. by Glittering-Disaster
Or evolved to have swords for flippers
Laika_5 t1_j0l0g3k wrote
They kind of have, thanks to barnacles
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