A scuba diver encountered one of the world’s most rare fish during a dip in the Caribbean Sea.
Underwater footage recorded during a night dive at St Croix, on the US Virgin Islands, shows the incredible Short Nosed Batfish looking like a small alien.
Batfish are found in the waters around the Galapagos Islands, but unlike most of their cousins, the species are terrible swimmers. Instead, the rare creatures have learned to walk the ocean floor on their fins.
Deep dive into the ocean's top 10 most dangerous sea creatures
Biologists have rediscovered a species of octopus that shares some of our social and mating habits
A striated frogfish, or 'hairy frogfish' has dermal spinules that cover its body and resembles hairs
One of the world’s rarest sea creatures, Migaloo the white humpback whale, was spotted off Australia's eastern coast
Sharks prey on a "shark bait ball" of sardines bunched together in an attempt to appear as one uniform sea creature.