Marine Animals
This strange sea creature has one of the bizarrest sex lives involving group sex and gender swapping
Nick Baker takes a look at the secrets of the Slipper limpet
3 miles down in the ocean deep-sea robot discovered a bizarre world that shouldn't exist – where water reaches 401°C
The Beebe Vent Field in the Cayman Trough is home to the world’s deepest known hydrothermal vents
The truth about shark bites – and how to make your visit to the ocean safer
Shark attacks on humans are extremely rare, but should it ever happen, here's our expert guide on what to do.
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“It creates deep rolling crevasses. The crushing sargassum is a killer.” Will these tiny turtles make it to the ocean?
In a clip from Blue Planet III, turtle hatchlings battle a wall of sargassum as they try to reach the ocean
Scientists studied extremely remote atolls in the Pacific, almost untouched by humans – and found them teeming with life
New research describes the rich biodiversity found on two remote atolls in the Pacific Ocean.
Whale shark vs basking shark: what's the difference between these titans of the ocean?
They might be the largest fish in the sea, but these gentle giants are harmless – here's how to tell them apart.
“We settle on the seabed just shy of 150m – deeper than the London Eye is tall.” What’s it like to journey down to the deep sea?
What’s it like going 150m below the surface of the sea? Melissa Hobson finds out
"It views us as prey, able to make short work of our puny bodies." Meet the largest, most powerful and deadliest bear on the planet
As the world's largest bear, and largest land carnivore, polar bears are impressive mammals. They are adapted to living in the harsh Arctic environment, and threatened by climate change.
Bluefin tuna vs yellowfin tuna: what's the difference between these two ocean giants?
And no, before you ask – the sole difference isn’t just the colour of their fins.
How deep is the deepest part of the ocean and where is it? Clue: it’s deeper than Everest is tall..
What is the deepest part of the ocean – and can anything live in this extreme environment?
Dolphin vs porpoise: what’s the difference?
From spade-shaped teeth to silent blowholes, here's how tell these two marine mammals apart.
Formidable power of great white shark captured in one staggering photo
This single image captures the incredible hunting abilities of one of the ocean's greatest predators.
Something enormous had been hiding beneath the Atlantic Ocean – leaving scientists surprised and amazed when they saw it
Researchers the discover the underwater equivalent of a bridge between Scotland and Iceland
Have humpback whales been witnessed trying to send messages to humans? What could they be trying to tell us?
Could humpback whales be trying to communicate with us?
It's the size of a small car, weighs the same as an e-bike – and can live for an astounding 100 years...
The biggest crab in the world has a leg span of nearly 4 metres and weighs 13.6kg
The tropical paradise you’re not allowed to live in – and the deadly, lethal secret its turquoise waters hide
With its pristine beaches and turquoise waters, Bikini Atoll looks like a tropical paradise. But beneath its picture-perfect surface lies a chilling history
When this WWII seaplane was discovered by a fisherman in 1994, an array of dazzling animals were found hiding in the wreck
The Jake seaplane rests in shallow water off the coast of Palau in the western Pacific Ocean. How it got there is a mystery
How does sound really affect whales and dolphins?
The underwater world is noisier than it has ever been and it's affecting whales and dolphins...
“A bubble of flatulence signals the main course.” These fish follow dugongs for a truly disgusting reason
When a dugong goes for a nap, it’s dinner time for the remora fish.
81 years ago, a cargo ship struck a mine and sank to the bottom of the Mediterranean Sea. Then something staggering happened…
Over time, the wrecked ship began to corrode and crumble – attracting some extraordinary creatures.
In 1938, Hitler organised a secret expedition to Antarctica – to search for whales
The Third German Antarctic Expedition aimed to monopolise whale hunting in the polar region
Scientists lowered a baited camera 1,054m into the Caribbean Sea, then this appeared out of the darkness
In 2024, researchers captured footage of numerous roughskin dogfish in the central Caribbean Sea – the first time the deep-sea species has been recorded there.
Deep-sea robot discovers mysterious golden orb 3,200m deep in the ocean – and scientists were stunned by what it really was
Here's why NOAA were so baffled by their discovery
"It was the length of 4 Ford Focus estate cars parked bumper to bumper and a ferocious super-predator able to seize substantial prey in its powerful jaws"
Megaladon was three times the length of a great white and ruled the ocean for millions of years. Here's what you need to know about this phenomenal fish.
