This fish remains a mystery, he has a transparent head, and those two balls in his head are his eyes, the two holes in his face are his nostrils.
The Macroppina Microstoma fish was discovered in California´s Central Coast.
This fish is also known as the barreleye fish.
He was discovered since 1939 but scientists could not find out more about this fish´s lifestyle since they were only caught dead by fishermen´s nets.

This animal has been observed by scientists thanks to a remotely operated vehicle.
He eats small jellyfish, by observing the little reflect from the sunlight, he can watch the moment when a jellyfish is passing overhead. Then he rotates his eyes to follow his prey.