The amazing deep-sea fish with a transparent head

This amazing barrel eye fish really does have eyes in the back of his head.Accustomed to living in the pitch black of the deep sea, the animal has developed a unique and incredibly useful ability to spot predators trying to sneak up on it, as well as potential food - through its own head.

Viewed from the front, the creature appears to be just like an average fish.But the differences immediately become clear when looking at it from the side or from above.While its body is mostly dark, the top part of its head is transparent, and its eyes are clearly visible.

Scientists believed the barrel eye fish could only look upwards, but they have recently discovered the creature can also look forward to align its mouth with its eyes.During its evolution, the Macropinna microstoma has developed so its head is transparent and its eyes are able to move themselves inside its own head to look out in different directions

According to evolutionary biologists, it developed such a powerful sense of sight as a result of the harsh environment it lives in.The fish, which is only a few inches long, lives a great depths just below the line to which sunlight can penetrate the water.This means that creatures around it cannot see it clearly. Predators lurking above it cannot spot it either, but it can look upwards to hunt for the small fish and plankton it lives on.