“So you’re diving, sticking your hands where it doesn’t belong (much like puberty, am I right?) when a moray eel bites you. You wouldn’t have stuck your hand down that hole if it was glowing. Now they glow to give you fair warning, thank you science. Oh, and we disabled their ability to vaporize you. That was another issue.”
The Glowing Moray Eel is an animal in Far Cry 3: Blood Dragon.