Marine Life

The discovery of three great white shark carcases in Gansbaai and Struisbaai, South Africa, suggests they were killed by orcas.

A rare megamouth shark has died a day after been sighted and filmed offshore from the Japanese town of Tateyama on the south coast of Honshu

A greater understanding of the mysterious plankton responsible for bioluminescence has helped scientists forecast plumes in the ocean

Franco Banfi's guide to diving with cephalopods - squid, octopus and cuttlefish; their natural history and where to find them

Ever since they were first discovered in 1969, pygmy seahorses have been one of the stars of the reef for underwater photographers.

300 million years ago, sharks dominated the oceans in an explosion of bizarre forms; the truth about Jurassic sharks is stranger than fiction