Marine Animals
Researchers tracked 9 great hammerhead sharks off Florida and the Bahamas. Here's what they discovered
Scientists wanted to learn more about how the largest hammerhead species on the planet may cope as the climate changes.
"It has – proportionally – the longest penis in the animal kingdom. The human equivalent would be a man impregnating his neighbour via the letterbox."
Nick Baker reveals all you need to know about acorn barnacles
How on Earth do sea turtles find their way back to where they hatched?
Female turtles return to the beach where they originally hatched to lay their eggs, but how do they know where it is?
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"It's highly territorial and if one of their 192 tentacles come into contact with neighbouring individuals they become extremely hostile"
Discover seven fascinating facts about the beadlet anemone in our expert guide by Buglife.
It’s made up of 1,000 miles of tunnels and was once thought to be the gateway to the underworld – but remains largely unexplored
In Mexico’s Yucatán Peninsula, hundreds of uncharted caves sprawl underneath the ground
Breathtaking footage shows diver's close encounter with the world's biggest octopus
The giant Pacific octopus is so enormous its arms could wrap around a small car.
“Effects range from internal bleeding to manipulating behaviour or liquifying a host.” These are the deadliest weapons in the animal kingdom
Powerful punches. Flesh-tearing teeth. Deadly talons. We explore the best (or is it the worst?) weapons in the natural world.
"It doesn’t have much to smile about with fewer than ten remaining." 10 of the world’s rarest whales and dolphins teetering on the brink of extinction
We take a look at the cetaceans on the brink of extinction
“It’s a bit like sea turtle forensics." Scientists looked inside 24 turtles – and uncovered secrets from the past
Sea turtle shells are helping researchers learn more about major environmental changes in the ocean's past.
“They bore the marks of an attack, including rib fractures, internal haemorrhages and specific teeth marks.” 5 animals that kill excessively – seemingly just for fun
Some animals have been observed to kill prey but not eat it – which is known as surplus killing. Meet the creatures that take part in it
Biologists stuck a camera on a sea turtle – and it filmed this
TurtleCams are helping marine researchers learn more about the lives of sea turtles as they cruise through our seas.
'As we approached the overhang, we spotted it – a bizarre creature with a fleshy beard lurking in the shadows'
Wobbegong sharks are ambush predators, hiding in reefs waiting for their prey to swim close enough. But they're very hard to find, says Melissa Hobson, who was lucky enough to spot one on a recent dive in Indonesia.
Researchers put a spy camera into the ocean. And this spiny creature took the bait
This predatory starfish can grow to 70cm in diameter and has white spines all over its body.
Drones film sperm whales headbutting each other. It's the first time the behaviour has been caught on camera
Marine scientists have filmed and scientifically described sperm whales headbutting each other for the first time – validating what mariners have said since the 19th century.
15 magical photos that show just how uniquely beautiful octopuses can be
Striking images that show different species of octopus in new light, capturing their full, tentacled majesty
“Its prey was still alive.” Photographer captures blue dragons feeding in unbelievable detail
A nature photographer in Gran Canaria captured hypnotic close-up footage of blue dragon nudibranchs feasting on prey.
Can whales and dolphins crossbreed?
Interbreeding between different cetacean species is extremely rare but has been known to happen
“As the great whites move in for the kill, the seals do something astonishing.”
Great white sharks may have reputation for being a ruthless apex predator, but that doesn’t mean they can’t be scared away
Scientists record world's longest underwater timelapse. What is reveals is astonishing
The 1,000-day underwater timelapse, recorded on an urban reef in Miami, shows corals bleaching before making a miraculous recovery.
It’s bigger than Hawaiʻi, over 350km long and home to the ‘unicorn of the sea’
Scoresbysund is the largest fjord system in the world – but it’s probably not where you might assume it to be
Researchers studied 184 bull sharks in Fiji – and discovered they might make friends
Scientists studying bull sharks in Fiji found that the animals may have more complex social lives than previously thought.
"I dived and latched onto her shell. My world span. We began to corkscrew, round and round. My chest burned and heaved"
Conservationist Elliot Conner gets rather more than he bargained for when he attempted to tag a turtle
Explosive power of great white shark revealed in staggering slow-motion video
These huge sharks can leap 3m out of the water – that's as high as a school bus!
It's as long as a basketball court, as tall as a giraffe and so huge it can be seen from space
Experts estimate that the massive mega coral – found near the Solomon Islands in the south-west Pacific Ocean – is about 300 years old.
