Marine Animals
Billions of giant sea stars are dying off the coast of North America. We finally know why
Knowing exactly what is killing the sea stars – some of which can grow the size of a bicycle tyre – is a vital step forward in the recovery of the marine animals, say researchers.
Diver films gigantic sea creatures clashing near Korean Demilitarised Zone
The dramatic footage, captured off the coast of Gangwon Province in South Korean, appears to show one giant Pacific octopus firing a cloud of ink at another.
"Robust, powerful and unpredictable": give Reggie the dolphin his space, warn experts
Conservation experts are stressing the importance of giving Reggie – a dolphin that has spent much of summer in Dorset waters – his space to prevent any harm to both tourists and the animal.
What’s the most venomous animal in the ocean?
"I’m hitting the OMG button! Are you kidding?” Ghostly sea creature shocks researchers
Schimdt Ocean Institute scientists were surprised and delighted when a pair of crabs summoned their dinner from behind a coral.
Octopus with special trick filmed drifting through the darkness 1,047m down
Scientists from Schimdt Ocean Institute shared a video of a bright orange octopus that uses its colour for something important.
"Death can come within five minutes": Discover the 10 deadliest, most venomous, jellyfish on the planet
10 dangerous ocean creatures you don't want to get close to
Sneezing iguana among 20 mind-blowing images from Ocean Photographer of the Year 2025
The finalists for this year's Ocean Photographer of the Year competition have been announced.
Baited cameras capture slit-eyed creature in middle of Indian Ocean. It's the first time it has ever been filmed here
When scientists put underwater cameras on unstudied seagrass beds on the Great Chagos Bank, they captured a sliteye shark on film.
Humans descend into huge deep-sea canyon for first time ever. What they find is astounding
It's the first time scientists have directly observed the bottom of the Mar del Plata Submarine Canyon off the coast of Argentina – and they made some extraordinary discoveries, including coral fields, sparkling squid and 40 suspected new species.
Scientists send soft-bodied robot 4,071m into deep ocean. They say it can "sense the environment"
Researchers believe the underwater robot – which looks and swims like a fish – could help improve deep-sea exploration.
"This was bizarre": underwater photographer captures curious interaction on Papua New Guinea reef
The researcher was observing Christmas tree worms at Kimbe Bay when he noticed the surprising behaviour.
Man finds remains of "little whale with big eyes and a mouth full of slicing teeth" in Australia
The 26-million-year-old fossil – comprising part of a skull with ear bones and teeth – was found on the coast of Victoria in 2019. A new study reveals exactly what the remains are.
Finding Nemo real-life species: Meet the actual sea creatures that inspired the Pixar classic
Think you know your clownfish from your cleaner shrimp? We dive into the real-life species behind the beloved characters of Finding Nemo – and reveal just how niche (and accurate) Pixar got with their casting
10 rarest shells on the planet, from a gigantic deep-sea snail the size of a shoe box to a bizarre comb-shaped shell with delicate prongs
We take a closer look at the world of ultra-rare shells – where the molluscs that create them live and why they're so hard to find
This primitive 'lizard shark' lived alongside the dinosaurs and is almost never seen alive
The first live footage of the elusive deep-sea predator was recorded in 2004.
When a diver approached this weird marine animal in Mauritius, he wasn’t expecting it to do this
Photographer Ian Haggerty stumbled across the bizarre-looking sea cucumber while exploring a reef.
“The action was intense… dramatic underwater chaos!" Diver films awesome feeding frenzy in South Africa
Underwater photographer captures the extraordinary moment a Bryde's whale bursts through an enormous ball of sardines off the South African coast.
"Most magical animals I've ever seen": drone photographer spots elusive creature with tusk longer than a sofa after 15-year quest
Since his first sighting, cinematographer Martin Gregus has been lucky enough to see these astonishing animals several more times.
Great white shark DNA study mystifies scientists
Great white shark DNA tells two different stories of the species’ evolutionary history, and scientists don’t know why.
20,000 deep-sea octopuses are gathering off the coast of California. Scientists just filmed them in breathtaking detail
Researchers have developed technology that can withstand harsh deep-sea conditions to help them study how the octopuses move.
When this photographer dived into a kelp forest, he was met with a truly breathtaking sight
A diver shares his magical moment with leopard sharks in the twinkling canopies of a kelp forest.
Expedition films strange sea creatures for first time in deep ocean
Scientists have captured extraordinary footage of organisms living more than 9km beneath the surface.
When a tsunami strikes, does any marine life survive? It’s not what you’d expect…
While tsunamis have a devastating impact on land, they also cause chaos in our oceans – with long-lasting (and often unexpected) consequences