Are there any flying marine life?

Manta rays, a kind of flying fish called "underwater demon", live in tropical and subtropical waters.

Manta rays may be called "underwater demons" because of their ugly appearance. Its head is wide and big, with a pair of meat horns on both sides and its mouth between them. The mouth is not round, but square. Manta rays are irregular oval, with a body disc of about 50 ~ 100 cm and a maximum of more than 6 meters.

Manta rays are strange, too. He is very lively and often plays some practical jokes. Sometimes it will deliberately dive to the bottom of the ship sailing in the sea, beat the bottom of the ship with its wings, and make a "whoosh, whoosh" sound, which makes people on board terrified. Sometimes, it ran to a boat moored in the sea and pulled up a small iron anchor, which made people feel at a loss. In the past, fishermen didn't know that this fish was "making trouble" and thought it was a "devil", which may be one of the reasons why people called it an "underwater devil".

Although manta rays have a bad name, they are also close relatives of sharks and belong to cartilaginous fish, but they are not fierce and gentle. It flaps its wings slowly and swims leisurely in the sea, sucking plankton and other tiny creatures into its mouth with its front fins and horns. It is said that an underwater photographer once met a big manta ray with a wing width of 2.3 meters while working underwater. When the photographer jumped on its back, it did not resist, but let the photographer ride on its back for a long time.