Megamouth shark

The megamouth shark lives in the deep sea.

It has a very big mouth. The shark swims with its mouth open. This helps it catch tiny food in the water.

It eats small things like shrimp. It also eats tiny jellyfish.

The shark is dark on top. It is white on the bottom. This helps it hide in the ocean.

People do not see this shark often. It is a very rare find.

It is a very special fish.

The megamouth shark is a rare deepwater shark.

It was first found in 1976 near Hawaii. This discovery was a big surprise to scientists. They found it was a new type of shark. It belongs to its own family called Megachasmidae.

This shark has a very large head. It has a wide mouth with small teeth. The mouth can grow up to 1 meter wide. It uses its mouth to filter food from the water. This is called filter feeding. It eats tiny things like krill and jellyfish. Inside its mouth, it has gill rakers. These are finger-like parts that catch food.

The shark is dark on top and white below. It has a white band on its jaw. This band reflects light.

Megamouth sharks move up and down in the ocean. During the day, they stay deep in the water. At night, they swim closer to the surface. This is called vertical migration. They do this to follow their food. These sharks live in the Pacific, Atlantic, and Indian Oceans.

The megamouth shark is a very rare deepwater shark.

It is much smaller than the whale shark or the basking shark. These three sharks are the only ones that feed by filtering water. Because people rarely see them, they are quite mysterious. Scientists have only seen or caught 296 of them since 1976. They are quite unique in the ocean. They belong to their own special family called Megachasmidae.

This shark has a very special way of eating. It uses a method called ram feeding to find food. The shark swims with its mouth wide open. It moves through the water to catch tiny things. These tiny things are called plankton. The shark also eats jellyfish, krill, and shrimp larvae.

Inside its mouth, it has finger-like parts called gill rakers. These rakers act like a sieve to catch the food. The shark's mouth can grow up to 1 meter wide.

Humans first discovered this shark on November 15, 1976. It was caught near Kahuku, Hawaii. A United States Navy ship was nearby when it happened. The shark got caught in a sea anchor at a depth of 165 meters.

A man named Leighton Taylor looked at the shark. He found it was an entirely unknown type of shark. This was one of the most exciting finds in science history. Some fossils suggest these sharks lived 36 million years ago. Other studies say they could be 100 million years old.

Megamouth sharks live in many different oceans. They are in the Pacific, Atlantic, and Indian Oceans. Most of them are found near Japan, the Philippines, and Taiwan.

They have also been seen near California, Mexico, and Australia. These sharks can live very deep in the sea. They can go down to depths of 1,000 meters. They have a dark top and a white belly. A white band on their jaw reflects light. This band helps them or might help them find others.

These sharks follow a pattern called vertical migration. This means they move up and down in the water. During the day, they swim very deep. At night, they swim up toward the surface.

They do this to follow the movement of their food. They are not very fast swimmers. A male shark once swam at only 0.3 knots. This slow movement helps them live in the deep ocean. They are truly amazing creatures of the sea.

The megamouth shark, known scientifically as Megachasma pelagios, is a rare species of deepwater shark. It is the smallest of the three living sharks that use filter-feeding to eat. The other two species are the much larger whale shark and the basking shark. Because they live in deep water, they are rarely seen by people. Since their discovery, only 296 specimens have been observed or caught.

This shark uses a process called ram feeding to find its food. It swims through the water with its mouth wide open to catch tiny organisms. This method allows it to filter plankton and jellyfish from the sea. The shark's diet includes zooplankton, such as krill, shrimp larvae, and squat lobsters. It also eats crab larvae and jellyfish.

Inside the mouth, the shark has special structures called gill rakers. These are finger-like parts that line the gill slits. They act like a sieve to trap food as water passes through. The shark's mouth is very large and can reach 1 meter in width. It has up to 50 rows of small, peg-like teeth in its upper jaw. The lower jaw contains up to 75 rows of these small teeth.

The megamouth shark was first discovered on November 15, 1976. It was caught about 25 miles northeast of Kahuku, Hawaii. A United States Navy ship called AFB-14 was nearby at the time. The shark became entangled in a sea anchor at a depth of 165 meters. Ichthyologist Leighton Taylor examined the specimen. He found it was an entirely unknown type of shark. This made it one of the most sensational discoveries in 20th-century science.

These sharks have a very distinctive physical appearance. They have a stout body and a long, bulbous head. Their color is brownish-black or gray on top and white underneath. A bright, silvery-white band runs along the upper jaw. Scientists once thought this band might produce its own light to lure prey. However, a 2020 study showed the band is actually just highly reflective. This reflection might help the shark find food or identify other sharks.

Megamouth sharks are found in the Pacific, Atlantic, and Indian Oceans. More than half of all sightings have happened near Japan, the Philippines, and Taiwan. They have also been seen near California, Mexico, Australia, and Brazil. These sharks follow a pattern called vertical migration to find food. During the day, they stay at depths between 400 and 700 meters. At night, they swim up to depths of 0 to 50 meters.

Researchers have studied how these sharks grow and reproduce. Mature males average 4.1 meters, while females average 3.5 meters. Some studies suggest they might even reach 5.7 meters in length. They are ovoviviparous, meaning young sharks develop in eggs inside the mother. This allows the young to hatch after they have grown inside her body. Genetic studies show that all megamouth populations are part of one single, migratory group.