This 22-inch-long (56-centimeter-long) fetus has a single, functioning eye at the front of its head

Cyclops sharks have been documented by scientists a few times before, also as embryos

The fact that none have been caught outside the womb suggests cyclops sharks don't survive long in the wild.

Cyclopia (also cyclocephaly or synophthalmia) is a rare form of holoprosencephaly and is a congenital disorder