Marine Animals
The "absolutely adorable” reason this octopus is hiding behind a twig
The curious octopus – filmed in Florida – appears to be playing hide-and-seek with a diver.
The very cute Dumbo octopus can swallow prey whole, reproduce at any time and is named after a Disney character – meet the elusive deep-sea animal
This animal's population is also unknown, as specimens are rarely found intact by scientists
This bizarre "giant swimming head" is about to return to Bali
Sunfish are on their way to Bali for the season and scuba divers are beyond excited.
"Largest great hammerhead ever filmed in the Bahamas"
A four-metre great hammerhead shark has been filmed up-close in the Bahamas.
Cute and very shy yellow boxfish filmed pootling around a reef – and it has a friend
An underwater photographer was surprised to see the two timid creatures hanging out calmly together.
Scientists capture first-ever footage of killer whales making seaweed grooming 'tools'
Killer whales have been filmed using kelp to scratch each other — a behaviour that has never been documented before.
Astounding deep-sea 'galaxy' filmed off Californian coast
This galaxy siphonophore is a stunning colonial organism that glows as red as burning embers.
'Moonwalking' orca stuns onlookers in Canada. Experts know what it's doing
Moonwalking is a rare behaviour among transient killer whales and may be a way of dividing up food to share.
“We’re not afraid of predators, we’re transfixed by them”: How Jaws changed our perception of sharks forever
Half a century after a great white shark terrified cinemagoers, we hunt down the lasting impacts of Spielberg’s blockbuster
'Eggs and sperm float around them like snow': this mating dance is like nothing you’ve seen before
When these marine animals get it on, they bust a dazzling move to impress their partner – and we have video evidence to prove it.
"Blows my mind”: when this drone pilot saw a baby whale off the coast of Australia, he wasn’t expecting it to do this
The photographer was amazed to see the newborn humpback whale launch itself into the air as it learnt to breach – and he caught the whole thing on camera.
A rare shark is seeking refuge in Miami's Biscayne Bay. Here's why scientists just spent 8 years tracking it
A new study reveals that Biscayne Bay is a vital year-round nursery and seasonal refuge for one of the world's most endangered – and unusual-looking – shark species.
Collision course: can new AI tech stop ships from killing whales?
Many whales around the world are at risk from ship strikes. This AI might be able to help save them, say researchers.
When night divers found a glow-in-the-dark animal hiding in the Red Sea, they uncovered a mystery
Researchers noticed tiny gall crabs fluorescing among the coral reefs and decided to try to figure out what was going on.
UK government proposes ban on bottom trawling in Marine Protected Areas
Government proposals to ban bottom trawling in more vulnerable marine habitats aim to protect important and rare underwater life.
Mysterious ‘ghost’ animal filmed 4,443m deep in Pacific abyss
The deep-sea footage was recorded at an underwater mountain chain off the coast of Chile.
Who is Ocean Ramsey? Meet the freediver who swims with one of nature's deadliest apex predators
A Netflix documentary, Shark Whisperer, has been made about her – but who is Ocean Ramsey?
"The hatchlings' heads were completely separated from their bodies": Australia's ghostly turtle killer caught on camera
Rare video footage shows golden ghost crabs preying on newly hatched loggerhead turtles on the west coast of Australia
"They were going nuts in the wake of the storm”: hurricane causes epic explosion of life off Mexican coast
There was so much life in the ocean that the water turned green, say scientists who witnessed the rare event. Here's what happened...
It looks like an alien, feasts on whale blubber, has multiple legs and hasn't changed for millions of years – meet this creepy, mysterious deep-sea giant
Despite being discovered almost 150 years ago, scientists still know relatively little about this scavenger of the deep.
The biggest fight on Earth: Brutal BBC footage shows 30 male humpback whales hunting down one female – some may even die in the process
The humpback whale's 'heat run' caught on film
Scientists have filmed anchor damage in the Antarctic for the first time. Here’s what they saw
Researchers filmed the damage caused by ships’ anchors in Antarctica, in a scientific first
DNA suggests shark "unlike any other" more common in Wales than previously thought
A new study suggests the decline in critically endangered angelsharks in Wales may have been overestimated.
16ft great white shark found with perfectly circular hole in head – and we know exactly what caused it
The strange-looking wound was made by another predator, say experts from the California White Shark Project.