Ocean
Record numbers of humpback whales are gathering – and experts don’t know why
After nearly going extinct only a few decades ago, these giants are getting together to put on one of nature’s most spectacular – and mysterious – shows
This 450-million-year-old fish has gone viral in Japan for the weirdest reason
Meet the Sacabambaspis, an extinct fish without jaws or fins
A ‘monster web’ of ocean currents is set to collapse. And the US is not prepared
Off the east coast of Greenland, scientists are studying the fate of the Atlantic Ocean circulation. Others are looking to prevent disaster
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What was the first ever 'sea' actually like?
It's not the sea as you see it – more like a primordial goo
One of the world's rarest (and strangest) sharks has been filmed alive for the first time
Known for its massive retractable jaw, the spooky footage shows the goblin shark lurking deep in the Pacific Ocean
This nightmare fish hides beneath the sand... and stepping on it can cause agony for beachgoers
The whitemargin stargazer hides and waits for its prey – the feet of unsuspecting beachgoers
Can we actually reverse ageing
Wrinkle creams only promise to turn back the clock – a pea-sized jellyfish actually does it
What's the world's longest oil spill?
The largest oil spill on planet Earth isn't man-made and releases around 17 tonnes of oil into the sea every day for the last 500,000 years
Scientists think they could soon solve the most mysterious disaster in aviation history
It’s been over 10 years since Malaysia Airlines flight MH370 vanished without a trace. But new search techniques could finally allow us to find the missing plane
This is our clearest look yet at one of the deep ocean’s rarest animals
Meet the bigfin squid, a quid with 'elbows', enormous rippling fins and tentacles like long, rippling strands of spaghetti
This terrifying 'kraken' was the true apex predator of the dinosaur age, scientists discover
Lurking in prehistoric seas, a colossal, intelligent hunter the length of four cars was crushing bones and seizing prey
Meet the weird worm that can survive being boiled alive
The Pompeii worm can withstand the heat of hydrothermal vents deep under the sea
There's no such thing as a shark, suggest scientists
Analysis of shark DNA has thrown a wrench into our understanding of these sharp-toothed predators
Scientists spot signs of cannibal killer whales in Russian waters
Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting their own kind?
How much of the ocean floor have we actually explored?
The Ocean is unbelievably large and hard to navigate, but are we any nearer to understanding it?
These underwater ‘panda skeletons’ are seriously puzzling experts
A truly unusual find discovered in Japanese coral reefs, these strange creatures were granted their own species
Do any animals use other animals for sport?
Who needs a ball when you have a pufferfish to hand?
Scientists spent a decade recording the Arctic Ocean. What they heard raises some unsettling questions
The Arctic used to be one of the quietest places on Earth. But all that’s changing, putting animals at risk
The 7 biggest ocean mysteries scientists can't explain
Weird noises, mysterious constructions and strange disappearances have left scientists scratching their heads. Here are seven phenomena we still can’t explain.
What's the deepest a submarine has gone?
Submarines have been diving deeper and deeper into the ocean's depths. Will we ever reach the bottom?
This 'phantom' jellyfish is bigger than a bus – and keeps lurking in shallow waters
New (very rational) fear unlocked – thanks nature
Was the sea always blue?
Several billion years ago, tiny little creatures may have changed the colour of the ocean
How much of the ocean is just whale pee?
Whale pee is more important to the ocean than you might think. How important? Urine for a shock
Killer whales have now learnt a genius way to destroy great white sharks, new footage shows
Killer whales have a grisly new technique for hunting juvenile great white sharks – and scientists caught it on camera
