? ? ? ? There is a fleshy protrusion above the fish's head, which looks like a small lantern. ? ? ? The first dorsal fin of fish gradually extends upward. Small lanterns glow because there are gland cells in lanterns, which can secrete light.

Photochrome, catalyzed by luciferase, reacts with oxygen for slow chemical oxidation and emits light. Many fish in the deep sea have phototaxis, so small lanterns become? ? ? ? A sharp weapon for fish to lure food.

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? ? ? ? Fish is rich in vitamins a and C. Rich in calcium, phosphorus, iron and other trace elements, with high nutritional value. Its tail muscles can be eaten fresh or processed to make money pine.

Its fish maw and fish roe are highly nutritious foods, the skin can be made into glue, the liver can be extracted with cod liver oil, and the fish bone is the raw material for processing fish meal with bones. In Kanto, Japan? ? ? ? Fish is hailed as the best in the world. Is there a puffer fish in the west and a puffer fish in the east? ? ? ? Known as.

Baidu encyclopedia? ? ? ? fish