Marine Animals
“At 4am in the morning, the captain came to my door." What happened next blew this wildlife photographer away
Ocean and wildlife photographer Greg Lecoeur relives his unbelievable encounter in Svalbard with both polar bears and belugas.
Ocean's most powerful, ruthless killers: The world's top 9 marine predators that rule the waves
Here are 10 of the most effective predators in the ocean – and you might be surprised which one comes out on top
Why do seals lie like bananas?
We take a look at the reason behind this characteristic pose
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Satellites spot gathering of gigantic tusked animals on remote Arctic island. It has never been seen before
The crowd of animals was discovered as part of the Walrus from Space project, which is using satellite imagery to explore what might happen to these huge marine mammals as the climate changes.
This creature has one of the mightiest, most lethal weapons in the animal kingdom – and he uses it to impress the girls
Meet the male fiddler crab, a tiny beach brawler whose oversized claw is both his greatest weapon and his boldest love letter
'Unicorn of the sea' washes ashore in Ireland. The bizarre Arctic animal has never been seen here before
Known for its iconic tusk, experts say this is the first time a narwhal has been recorded in Irish waters.
Mega-shark remains found on beach in Australia. Experts say it was absolutely massive
After examining the fossils, scientists think the huge prehistoric predator would have measured up to eight metres in length and weighed significantly more than today's great white sharks.
When scientists sunk a deep-sea robot 1,300 metres into the Pacific Ocean they found something staggering...
A remotely operated vehicles found never-before-seen hydrothermal activity on the seabed in Papua New Guinea.
How do diving gannets avoid breaking their necks when entering the water at speeds of nearly 100 km/h?
The sight of gannets diving into water for their prey is impressive to behold, but how do they avoid breaking their necks at such a high speed?
10 fastest swimmers in the ocean, including one animal that can accelerate to nearly 80MPH quicker than a Porsche
When it comes to fastest animal, we usually think of cheetahs, but many ocean creatures also boast spectacular sprints – here are some of the quickest
"Totally surreal": exceptionally rare white whale amazes divers in Tonga
These tourism guides have been on the sea for 28 years. This is the first time they've seen an all-white whale.
This deadly paradise hosts one of the largest gatherings of the biggest, most brutal marine predators on the planet...
The southern tip of Africa hosts one of the largest gatherings of big marine predators on the planet. Explore the bay where sharks, killer whales, dolphins and seals fight for food , - and supremacy.
Despite weighing up to 4 tonnes, this mammal can dive to depths of 2000 metres, hold its breath for an incredible two hours and even control its heart rate
Scientists drop microphones to Arctic seabed, then 4m-long animals with huge tusks appear
We thought eavesdropping on animals didn't annoy them... until these strange-looking creatures started hitting underwater recording devices.
33-metre, 180-tonne monster tops 'biggest animals in the ocean' list – and makes the great white shark look tiny
From the gigantic blue whale to a coral colony so large it can be seen from space, here are some of the most enormous organisms living in the ocean
Drones spent 8 years flying over Massachusetts waters. What they found could help save one of Earth's biggest animals
The drones' mission was to collect the breath of critically endangered North Atlantic right whales in Cape Cod Bay.
Researchers tag 8 pilot whales in Hawai'i then follow them into the darkness. What they find is "unbelievable"
For the first time, scientists have quantified how many deep-sea squid short-finned pilot whales in Hawaiʻi need to eat to support their deep-diving lifestyle.
Purple is nature's rarest colour but purple animals do exist: Meet 9 beautiful, incredible purple animals that look like they've been painted
Are these the world's best, most outrageous, moustaches? 8 animals with a better facial fuzz than yours
Check out these brilliantly bristly animals that use their moustaches and beards for all manner of tasks, from foraging for food on dark ocean floors to spreading scent to attract mates
How does sound affect whales and dolphins?
The underwater world is noisier than it has ever been and it's affecting whales and dolphins...
“I've been thinking about this possibility for 15 years": Killer whale experts make new discovery off North American coast
New research has revealed that West Coast transient killer whales – found from south-eastern Alaska to southern California – are two distinct communities that rarely encounter each other.
Why do whales have blowholes?
Why is a blowhole on the top of a whale's head and what does their exhaled breath smell like?
It's as sleek as a torpedo, as long as a bus, and weighs the same as an elephant: Discover the ocean creature that slices through our waters at 35 km/h
Our guide to the minke whale, the UK's most frequently spotted whale
Deep-sea scientists filmed something astonishing and very rarely seen swimming over the seafloor in Chile
Extraordinary footage of a mother squid carrying her eggs