Marine Life

A new paper documents an extraordinary encounter as tiger sharks and oceanic whitetips are seen peacefully feeding together off Hawai'i

Schmidt Ocean Institute's ROV, SuBastian, has captured the first ever footage of a colossal squid in ints natural habitat - and it's a baby!

Basking sharks are the second-largest species of shark, but unlike tabloid reports about 'monster fish', they're not terrifying at all.

Nudibranchs and sea slugs that are active during daylight hours are more brightly coloured and patterned than their nocturnal counterparts

They look like unremarkable polished stones but sailor's eyeballs are actually one of the most unique organisms on the planet

A new study finds that sea turtle populations around the world are on the rise, largely thanks to global campaigns for their protection

'Sluggish and lethargic', the torpedo ray wasn't named after the naval weapon but by Romans who used them for some interesting treatments.

Lewis Jefferies visits the UK's National Lobster Hatchery in Padstow as it continues to develop its successful stock-enhancement programme.

In his latest book Coral Triangle Cameos, Alan Powderhan focuses on the diminutive yet vital and often overlooked inhabitants of coral reefs

Syanptula lamperti is common to coral reef night dives in the Asia-Pacific region, crawling around on the sponge they voraciously devour

Scientists in Australia have witnessed whale shark mating behaviour at Ningaloo Reef, in what is believed to be the first…

Named for the sailors of Greek mythology, argonauts, also known as paper nautili, are a unique group of shelled octopuses (and can't sail)

A new study suggests that a pod of orcas in the Gulf of California has developed specialised techniques for hunting whale sharks.

Jenny Stock ranks the venomous creatures that lurk underwater, and details the treatment if you're unlucky enough to get stung.

Three ocean currents meet in the waters around Cornwall. Lewis Jeffries explores the vast diversity of marine life that thrives there as a result

Strong westerly winds drove Portuguese man o' war to the UK and Ireland last winter, making it the second-most sighted jellyfish-like species

There are some weird and scary-looking fish down there in the dark that you definitely don't want to bump into on a Halloween night dive...

It was given its name for its flashing light display, but Ctenoides ales, the disco clam, is more like a mirrorball than a dancefloor strobe