Discoveryのインスタグラム(discovery) - 5月18日 01時06分

Close up of humpback whale baleen. Baleen is a filter-feeder system inside the mouth of baleen whales that helps filter out food as water and prey rush into a whale’s mouth while lunge feeding. The baleen is bristle-like and is made of keratin, the same substance found in human fingernails and hair.

Photo from @oceana
#whales #humpback #humpbackwhale #SonicSea

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