2. Rhynchohyalus natalensis
Drumeye fish, also known as devil fish, usually live in tropical to temperate waters of the Atlantic, Pacific and Indian Oceans and live at depths of at least 600 to 800 m below the seabed. This fish has large, flat fins that allow it to remain motionless in the water. Thanks to the transparent top of their heads, they help them capture blocks of light from the sea surface to clearly see other fish and perform hunting actions. This species of drum-eye fish was known in 1939, but it was not until 2004 that humans proved its existence.
In addition to the strange transparent head, the drumeye fish also possesses sharp eyes and is also extremely special. From the photo taken, you can see that the blue sphere inside is the eyes of this fish. The eyes of this fish can rotate, look forward, and look up extremely flexibly. When looking up, the drumeye fish can see through its crystal-clear head to find its prey, and at that time, this fish's eyes will emit a beautiful green light. This feature helps them adapt to dark environments and hunt prey more easily.
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