Whale shark (Rhincodon typus) feeding.

The largest fish on Earth is the Whale shark (Rhincodon typus): a gentle, filter-feeding giant that can reach lengths up to 10-14 meters. The largest sighted ones were 18 meters long. They feed on plankton. This individual was photographed near the village of Oslob on Cebu island, the Philippines, where local fishermen changed their ways and instead of slaughtering them they feed these animals and let tourists swim near them. Cebu, Philippines.