Is it a brush? Is it a broom? No, it’s baleen!
It is found inside the mouths of baleen whales which are known as Mysticetes or the ‘Moustached whales’. This bristly mouthpiece is actually comprised of keratin which also makes our hair and nails. The baleen whales are among some of the largest whales in the world, including the blue whale and the humpback whale among others. Despite their enormous size, these giants feed on some of the smallest creatures in the ocean, krill and small fish. They swallow vast quantities of water and expel the water through the sieve-like krill plates. The little creatures get trapped in the baleen and the whale licks along the plates to flush the creatures into its mouth.
Suzanne Burns 2015.