Glow-In-The-Dark Shark

Scientists have discovered a shark that glows in the dark. At 5 feet long, the kitefin shark is probably the world’s largest bioluminescent animal. It lives in the ocean’s twilight zone, half-a-mile deep. At that depth, their glow would act like camouflage, when seen from below. The glow helps them blend in, like tiger’s stripes.