Next to the Blue Whale, the Fin Whale is the second-largest animal in existence today. The skeleton displayed in the Senckenberg Nature Museum in Frankfurt is 22 meters long. The outline of the body on the wall gives an impression of the animal’s enormous size. The mouth is so big that it comfortably holds a small group of visitors. In living animals, the roof of the mouth bears long lamellate bristles, the so-called baleen. The whales use these plates to filter their food from the ocean, which consists primarily of tiny crustaceans known as krill.