Sea luminescent biological photo album

A picture of creatures that emit mysterious lights in the sea without sun. I feel a wonder of life.BL Web: Photos

It seems likely to believe if he is told that he is emitting LEDs in seven colors.

The reason why the deep sea fish glows is as follows.

Deep sea fish - Wikipedia

Luminescence to discover target organisms to be predicted.
Luminescence to lure an organism to be predicted.
· Luminescence to communicate with friends.
Luminescence to hide yourself. Although saying "deep sea", very weak light is inserted until about 1000 m deep. At that time, if you look up at the sea level from underwater, the shadow of the contour of the body of the living thing can come up clearly. It emits light to erase its contour.

I was surprised that about half of the deep-sea fish will emit light.