A Black-finned snake eel (Ophichthus cephalozona) pokes its head out of a sandy seafloor in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

actinopterygii anguilliformes animal animal behavior animal eyes animal head animal themes animals in the wild aquatic arthropod biodiversity black neck snake eel blacksaddle snake eel burrow cleaner shrimp cleaning close up color image commensalism coral triangle crustacean dark shouldered snake eel day decapoda eel eyes fish habitat headsaddle snake eel headshot horizontal indo pacific ocean indonesia macro marine biology mutualism nature no people ocean ocean floor one animal ophichthidae ophichthus cephalozona outdoors pacific ocean parasite part of peeking photography sand science sea sea life shrimp side view snake eels southeast asia symbiosis symbiotic relationship tiny undersea underwater wilderness wildlife zoology