Glow-in-the-Dark Fish Have Been Lighting Up the Oceans for 150 Million Years Bioluminescence has evolved at least 27 separate times in fish.
VIDEO: Glow-in-the-Dark Sea Turtle Discovered The first biofluorescence in reptiles has been sighted and filmed in a hawksbill sea turtle swimming near the Solomon Islands.
8 Unbelievable Freaks From the Deep Sea "Earth's oceans are kind of like the Internet... the deeper you go, the weirder it gets."