Baleen plates hanging from the upper jaw of this whale. Used to net any unsuspecting prey. They use their tongues to clean off dead or living organisms that accumulate in between them
Differences Between Baleen and Toothed Whales
Baleen: From Whales to People | Smithsonian Ocean
Baleen makes tangled traps | WildWhales
For baleen whales, plastic pollution has become a bigger threat than oil • Earth.com