We all know sharks have had a bit of an undeserved bad rap (thanks Jaws!). But if you're one of those people who find sharks scary, this newly identified species of pocket shark might just change your mind.

A giant jellyfish the size of a human has stunned a diver off the south-western coast of England.

Scientists who peered inside snoozing zebrafish have spotted some strikingly familiar patterns of activity.

Rog Hanson created a secret habitat for seahorses in the coastal waters off Long Beach. He's come to see them about 1,000 times.

In a new survey of the sub-seafloor off the U.S. Northeast coast, scientists have made a surprising discovery: a gigantic aquifer of relatively fresh water trapped in porous sediments lying below the salty ocean.

Floating sunscreen, cloud brighteners and killer robots are just a few of the measures scientists are hoping will save the world's coral.

The Gulf of Mexico could see one of its largest dead zones on record this summer, according to researchers.

A buoy and rope that was found entangling the whale was marked with the owner's name and number and was eventually traced to a Nova Scotia fisherman.

From sperm whales to dolphins, marine mammals in the eastern Mediterranean face a lethal threat from oil and gas exploration

Coffinfish hold water over their gills for up to 4 minutes

Some species of squids, crabs and octopuses may be losing their vision in Earth's oxygen-starved oceans.

A retired naval officer dove in a submarine nearly 36,000ft into the deepest place on Earth, only to find what appears to be plastic

The oceans hide all kinds of secrets and unknowns in the deep – like the 195,728 viruses that scientists just found lurking underwater, during the course of a pole-to-pole expedition carried out to survey marine life. The researchers say the vast m

The creatures are not just incredibly clever, but also carnivorous, meaning a huge amount of wild fish will be caught to feed them, putting pressure on the ecosystem.

Even the largest ecosystems have limits when it comes to recovering from the impact of climate change, according to new research from Australia.

In the Mariana Trench, the lowest point in any ocean, every tiny animal tested had plastic pollution hiding in its gut.

Research shows how the Antarctic blackfin icefish differs from its close relatives on the genetic level.

The salt and chemicals in the brine left over from desalination can threaten local marine ecosystems

A prized delicacy in Japan, where poisonous varieties are prepared by skilled chefs, pufferfish are giving spicy crayfish a run for their money in Beijing

Increasing ship traffic, sonar and seismic air gun blasts now planned for offshore drilling may be disrupting migration, reproduction and even the chatter of the seas’ creatures.