Marine Animals
“Probably ate it headfirst." Here's what scientists found inside this deep-sea fish’s bulging belly
Researchers at the Natural History Museum wanted to solve the intriguing mystery of what was inside this rare fish’s enormous stomach without cutting it open – here’s how they did it.
Crab might be a delicacy, but this one is highly poisonous and deadly to eat – just a tiny amount can kill a human and there's no antidote!
Discover the colourful, toxic crab which can kill – warning, there is no cure - and therefore shoudn't be eaten!
How do whales mate? For animals as big as whales, sex can be a tricky affair and lengthy affair - here's how they do it
Discover the fascinating world of whale reproduction...
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“It was pure chaos!” This diver stumbled across a huge creature cruising through the ocean…
Underwater videographer shares incredible footage of the moment he discovers an enormous lion's mane jellyfish.
It strikes fear into swimmers around the world and sends people scrambling from the water – but what exactly is the point of a dorsal fin?
The dorsal fin is one of the most recognisable features in the animal kingdom, but it's far more than a dramatic silhouette. Here's why so many creatures have evolved one
It looks like something from science fiction, has a 1m leg-span, can pinch with the force of a gorilla's bite and – terrifyingly – can climb trees…
‘It forms pods of up to 10,000 individuals and the water looks like it’s been whipped into a froth’
Advanced social skills and excellent teamwork help these cetaceans thrive around the world
"They dodge death by hitting rewind. Even after a dead medusa has collapsed into a pile of mush, its cells can grow into polyps…"
Immortal jellyfish, and a few similar species, are said to be immortal. But how true is this claim? Dr Helen Scales explains.
They have strange beaks, bizarre bodies and can plunge more than 2.5km into the deep ocean… Are these the world's strangest whales?
"It's small enough to hold in your hand, but equipped with an underwater surveillance system worthy of a deep-sea spy…"
Does it really need this number of eyes?
How to help a beached, stranded whale or dolphin - and help save its life
A beached cetacean is a distressing sight, but there are ways you can help until the marine medics arrive, says British Divers Marine Life Rescue (BDMLR)
It's as sleek as a torpedo, as long as a bus, and weighs the same as an elephant: The ocean creature that slices through water at a speedy 35 km/h
Our guide to the minke whale, the UK's most frequently spotted whale
It contains over half of Earth’s water and all of the continents could fit into its basin in one mega-puzzle
The world’s largest ocean is home to incredible wildlife and is crucial to the Earth’s climate system
"Their lipid- and protein-laden bodies create unique, nutrient-rich ecosystems that may sustain creatures of the abyss for decades…"
Ever wondered what happens when a whale dies in the ocean? Joanna Bagniewska explains
"You can hear them talking to each other through your hull.” Sailor alone at sea for a week. Then this happens
One week into a 10,000-mile solo voyage across the Arctic Ocean, this sailor had a wildlife encounter to remember.
Researchers followed humpback whales to the seabed – and saw them hunting in a way never seen before
Scientists just saw – and filmed – humpbacks cooperatively hunting along the seafloor for the first time.
Scuba divers in Bali thought this huge shape was a whale shark. But it wasn't
In an extremely rare encounter, a great white shark joined a group of scuba divers in Indonesia.
At a staggering, gigantic 33 metres long it's not only the biggest animal in the world today, it is the largest animal to have ever lived...
Our guide to the world's largest ever creature, the blue whale
When a giant iceberg calved from the Antarctic Peninsula, it revealed a deep-sea world never seen by humans
With the help of a remotely operated vehicle, researchers went on an eight-day mission to explore the newly exposed seafloor, where they captured extraordinary footage of a host of deep-sea creatures, including a giant phantom jelly.
Divers saw a shark approaching – and were stunned when it did this
Extremely rare footage shows an oceanic whitetip shark breaching in the Maldives.
Why do captive killer whales have drooping dorsal fins?
Orca in captivity live very different lives from those in the wild, and this can affect their physical features
"While snorkelling a scientist was dragged underwater and drowned by one of these huge predators…" 8 deadliest animals in the Antarctic Ocean
If you somehow find yourself in the Antarctic Ocean, these are the animals you don't want to cross.
This solar-powered sea slug slurps its lunch like a smoothie then does a headstand. The footage is beyond belief
When these sea slugs feed on algae, they pinch their prey's ability to photosynthesise. Now, scientists have shared remarkably rare footage of them feeding.
These people went out on the reef at night – and found walking sharks in the shallows
Epaulette sharks are famous for using their fins like limbs to help them crawl around the seabed. Now, a new study reveals that coral reefs are important nursery grounds for these curious marine creatures.
