Fish
Meet nature’s deadliest sniper, the archerfish – this lethal assassin shoots down prey with fatally accurate water jets
10 deadliest fish on the planet: you won't want to meet these fearsome species underwater
Beyond the shark! We bring you a veritable who's who of the scariest fish species lurking in the deep (and not-so-deep) waters.
These are the rarest sharks in the world – and before long they could be extinct, warn Shark Trust
Uncover the mysteries of the ocean's most elusive predators with our roundup of the world's rarest species of sharks and rays
This mythical looking creature drifts through the ocean disguised as seaweed – meet the curious ‘seadragon’
It also swallows its prey whole and has an unusual mating ritual.
Nemo is shrinking: climate change is causing Disney's favourite fish to get skinnier and shorter
Clownfish, made famous by the movie Finding Nemo, shrink to survive heat stress and avoid social conflict during marine heatwaves, a new study finds.
Most beautiful fish: Are these 8 species are the ocean's most stunning fish?
From dazzling colours to intricate patterns and graceful shapes, these spectacular fish showcase the incredible beauty thriving in our oceans
Are there great white sharks in New Zealand waters?
The country is a haven for wildlife with many of its own endemic species – but can great white sharks be found there?
The weirdest sharks on the planet, including one that can walk: Discover some of the ocean's strangest creatures
Celebrate the wonder and variety of these ancient, much-misunderstood fish in our list of the weirdest sharks in our oceans
Can any animals kill a great white shark?
Great white sharks are an epic predator but other animals can harm them to
“It’s hard to imagine a more wasteful way to catch fish” David Attenborough narrates never-before-seen footage of destructive bottom trawlers
The widespread fishing practise has been filmed for the first time in such detail as part of a new Attenborough-narrated documentary.
We don’t know how great white sharks have sex, but what we do know about their mating ritual is terrifying
All we know about great white shark sex
It's longer than a bed, covered in slime and has teeth in its throat – meet this giant hunter of the reef
This 30-kilogram predator hunts mostly at night, ambushing prey before swallowing it whole with its specially adapted jaws.
Incredible shark facts: 34 hard-to-believe facts that celebrate this fascinating, yet much-maligned fish
Celebrate the wonder and variety of sharks, an ancient and much-misunderstood fish.
How deadly are sharks to humans?
People often worry about the risk of shark bites but how dangerous are these predators to humans in reality?
Are there great white sharks in UK waters?
British seas have temperate waters and lots of seals – perfect conditions for great white sharks. But is the iconic species found here?
David Attenborough narrates amazing BBC underwater footage of the fastest fish in the sea using their 'swords' to 'disarm' their prey
Giant predatory sailfish use their swords to 'disarm' their fish prey rather than to dismember them.
The incredible fish that scale 120 metre high waterfall rock faces with an astonishing climbing technique – watch amazing video to see how they do it
Did you know fish can climb? Meet the amazing waterfall-climbing goby
Fish can do maths, walk, fly AND pee: 14 fish facts that leave you scratching your head
Think you know fish? Think again. From farting herrons to maths geniuses, these underwater wonders continue to surprise us
Dragon of the abyss: this rarely seen deep-sea creature is like a shadow with fangs
Dragonfish are often very dark in colour, making them almost invisible to prey in the deep ocean.
When researchers sunk baited cameras into Timor-Leste’s deep ocean for the first time, they made a stunning discovery
The cameras recorded the first-ever live footage of one of the rarest deep-sea animals in the world.
This beautiful, flamboyant predator has a deadly, venomous streak...
These beautiful predators are immediately recognisable and cause chaos in many coral reefs around the world
This bizarre fish has no red blood — just antifreeze. Could it help scientists save lives?
How nature's ingenious solutions to extreme environments offers valuable insights for human organ preservation
Peculiar sea creature that looks like a spotty golf ball filmed near Vancouver Island after season-long search
These strange red animals are hard to find because they hide in rocks and kelp – but that didn't stop this underwater videographer from trying.
When marine biologists peered into this shark egg, they were utterly astonished by what they saw
The researchers documented the first confirmed case of identical twins in small spotted catsharks.