Anglerfish: Scientific name? ? ? ? Fish, commonly known as oral fish, frogs, frogs, anglerfish and so on. This is a bony fish. ? ? ? Eyes? ? ? ? Family, a worldwide fish, distributed in the Atlantic Ocean, Pacific Ocean and Indian Ocean, with a wide variety.

Anglerfish (scientific name? ? ? ? ), also known as "electro-optic fish", is a strange-shaped fish that lives in the ocean. The body length is generally 45 cm and the longest is 2 meters. The body color varies from brownish green to grayish black, with mottled spots on the body surface. The anglerfish has a flat body, a big head, developed dorsal fins and pectoral fins, and a long tail like a whip. There is a row of spikes at the joint between the tail root and the fish body, which can produce venom. Looking down from the back of the fish, it looks like a pipa, so it is called "anglerfish".

Introduction:

Anglerfish is a benthic fish, which generally lives at a depth of 2 to 500 meters below sea level and likes the bottom of gravel. Anglerfish feed on all kinds of small fish or juveniles. When it comes to predation, we can't help but talk about the unique "predation tool" of anglerfish.

The kiss on the head of a female fish usually has a fishing rod-like structure. There is a fleshy protrusion at the end of the "fishing rod", which looks like a bug. anglerfish use it to trap other greedy fish. Because anglerfish live in the dark sea, there is usually a luminous organ at the end of the "fishing rod", which can emit cold light to help anglerfish trap other fish. So anglerfish is also called "electro-optic fish".

? ? ? ? Fish have two dorsal fins. The first dorsal fin is different from ordinary fish, and consists of 5-6 separate fins (6 are yellow? ? ? ? Five are black? ? ? ? )。 The first two pieces of silver are located on the back of the kiss. It has a leather nail at the top. Both the second dorsal fin and the arm fin are located at the tail. The pectoral fin is wide, lateral and round, and the base is arm-shaped, which helps the body slide. Short ventral fin, throat position. The caudal fin is round. The body is bare and scaleless, and there are cortical processes of different sizes above the head and on the side of the body. This kind? ? ? ? The total length is only 10 cm. If you can't meet prey in the deep sea, try to swallow food bigger than yourself. Sharp teeth face inward, and once the prey is caught, it can't escape. ? ? ? ? Fish don't swim very much, so there are few opportunities to hunt. In the long-term evolution process, its dorsal fin has changed: the first dorsal fin gradually extends to the head, the first three spines of the dorsal fin are separated in front of the head, and there is a luminous petal at the end. When the small fish swims near the luminous point. ? ? The fish shakes the fishing tackle, lures the fish to the bait and sends it to the mouth. ? ? ? ? Fish have a big appetite and are often stuffed with sharks. It grows in the depths of the dark ocean, moves slowly and leads a lonely life. In the vast ocean, it is difficult for males to find females. Once they meet a female fish, they will depend on each other for life, and the nutrition of the male fish is also supplied by the female fish. Over time,? ? ? ? Fish form this unique mate relationship. Johnson? ? ? ? Our stomachs will swell, so big prey can swallow them. The front half of the body is flat and the tail is cylindrical. It is generally 40-60 cm long and weighs 300-800 grams. The head is huge and flat, the mouth is wide, there are black and white markings in the mouth, and there are 1~2 rows of lodging fangs in the jaw. The body is soft and scaly, with brown back and gray abdomen. There are many cortical processes on the edge of the head and body. There are 6 independent fin spines at the front end of dorsal fin. The first spine is located on the back of the kiss, with cortical thorns at the top. The pectoral fin is wide and the sides of the body are arm-shaped; The gluteal fin has 8~ 1 1 fin. Each fin is dark brown.

The exact mechanism of anglerfish luminescence has not been fully understood. At present, there is a view that there is a substance called "fluorescein" in the luminescent organ of anglerfish, which can emit light under the oxidation of luciferase.