Do all sharks eat meat?
As a group, sharks eat almost anything: fishes, crustaceans, mollusks, marine mammals, and other sharks. Some sharks are filter feeders. The basking shark and megamouth shark strain huge amounts of plankton from the water on gill rakers. Whale sharks also filter feed. They strain plankton through a spongy tissue in their mouth. Filter feeding sharks have tiny, nonfunctional teeth.
