Whale sharks are the world's largest omnivores.

A study by Australian scientists has shown that in fact the largest omnivores in the world are not the Kodiak brown bears living in Alaska, but whale sharks. Previously, it was believed that they only eat keel - a mass of small crustaceans. But, studying whale sharks off the Ningaloo reef, scientists came to the conclusion that these animals are also able to digest plant foods. And it, apparently, makes up a large part of their diet. Whale sharks can be over 12 meters long and weigh up to 19 tons. Now they are considered the largest of the existing fish.