Marine Life

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

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

A new species of chimaera - aka ghost shark - the narrow-nosed spookfish, has been discovered by scientists in New Zealand

Laboratory-grown corals of SECORE's Coral Seeding programme proved resistant to bleaching during the 2023 Caribbean marine heatwave

Scientists from Norway's Nord University have found that there are three genetically distinct types of great white shark

The subject of many marine myths and sea serpent legends, the misnamed giant oarfish doesn't actually row itself anywhere.

A sobering global assessment reveals that half of all the worlds vital mangrove forest ecosystems are at risk of collapse.

Kiwa hirsuta - the Yeti crab - prefers it not too hot, and not too cold, but just right, down there in its hairy hydrothermal depths.

The Deep Sea Conservation Coalition has organised a competition inviting ocean lovers to name a new-to-science species of deep-sea coral. 

A new study reveals that grey whales are rapidly shrinking and scientists fear this could have a significant impact on whale health.

A female squid first filmed in 2015 carrying 'giant' eggs has recently been determined to be an as yet undescribed species

A video has emerged showing a sperm whale entangled in rubbish swimming up to a group of divers and asking them for help.

Marrus orthocanna - a deeper, darker, colder relative of the Portuguese man o' war but with much less of a sting in its tail

MCS Hiraeth Yn Y Môr Project Assistant records footage of a curled octopus changing colour in rare footage shot on a Welsh beach

A new study sheds light on the ancient origins of bioluminescence, suggesting it evolved nearly 300 million years earlier than first thought

Clione limacina, also known as the naked sea butterfly, sounds like an angelic little creature - that feasts on its relatives...!

The Domincan Republic will be joining only a handful of other countries to have committed to conserving 30 per cent of its ocean water.