A Peacock flounder (Bothus mancus) and a Freckled snake eel (Callechelys lutea) share a moment in the sand. Peacock flounders can change coloration to perfectly match a sand, gravel or coral background. Freckled snake eel bury in loose sand with only their heads visible. They can reach over three feet in length and when threatened will swim backwards through the sand; Hawaii, United States of AmericaImage #: 33354269 See More From: Dave Fleetham