Introduction to Megamouth Sharks

Megamouth Sharks (Megachasma pelagios) are one of the rarest and least understood species of sharks in the world. They were first discovered in 1976 off the coast of Hawaii, and since then, only around 100 sightings have been reported worldwide. These sharks are believed to be one of the three extant species of filter-feeding sharks, along with the basking shark and the whale shark. Despite their large size and unique feeding behavior, very little is known about the habitat and behavior of these elusive creatures.

Physical Characteristics of Megamouth Sharks

Megamouth Sharks are large, slow-swimming sharks that can grow up to 18 feet (5.5 meters) long and weigh up to 2,600 pounds (1,180 kilograms). They have a distinctive appearance, with a broad, rounded head and a wide, gaping mouth that can reach up to 4 feet (1.2 meters) wide. Their bodies are dark blue-grey on top and white on the bottom, and they have a row of light-emitting organs along their ventral midline. These organs are believed to play a role in attracting prey and mates. Megamouth Sharks also have five gill slits, each of which is covered by a flap of skin called an operculum.