Glowing Eels? Sex Drives Brain Protein to Evolve Brightly | Video

A 'brightly fluorescent protein' has been revealed in some species of marine eels causing them to glow. Researchers have speculated that, because the full moon 'excites' the glow of the sea creature, this may be a mating adaptation. Here, a moray eel can be seen shining in its habitat.

credit : David Gruber