'Huge' cocaine levels make sea life high in popular beach bay
The drug has now been classed as an "emerging contaminant of concern" and may have been accumulating in Brazilian waters since the 1930s.
Dead dolphin discovered with bullets "lodged" in brain, spinal cord, heart
NOAA is offering a $20,000 reward for information regarding the dolphin's shooting, including the identity of anyone involved.
Huge prehistoric salmon had spikes that could have "easily killed" a shark
The salmon, which went extinct around five million years ago, is thought to have reached immense sizes of almost 9 feet in length.
This animal was first to emit light—540 million years ago
Animals went bioluminescent 273 million years earlier than scientists previously thought and in a completely different species.
"Incredible" clip shows scientist and octopus "communicating" in the wild
The footage comes from an upcoming National Geographic documentary series produced by James Cameron.
Sharks seen "adapting" to different environments for first time
"Sharks are adapting their movements and routines to suit their local environment, rather than behaving the same way everywhere," researcher Oliver Jewell said.
"Wildly different" shark that can live for centuries at risk
A mysterious species of shark that lives at depths of up to 6,000 feet is at risk of being overfished.
Paleontologists discover fossils of what may be largest-ever marine reptile
The "gigantic" creature, which lived more than 200 million years ago, may have reached around 82 feet in length, a study reports.
Sea plastics are causing embryos to "go wrong" and die
When exposed to high concentrations of plastic, none of the marine species' embryos remained viable.
Scientists discover 50 new deep-sea species near Easter Island
The discoveries "have unveiled constitute a dramatic example of how little we know," researcher Javier Sellanes said.
Freaky mass of gloop washes up on beach
The bizarre glob of slimy matter is thought to be a decomposing whale carcass.
Whales caught in rare mating ritual
"It was a spectacular display of massive power and grace, one of the great sights in nature," researcher Peter Gill said of the experience.
California gets warning about sharks
"We won't be able to monitor sharks along California anymore," said Chris Lowe, director of the Shark Lab at Cal State Long Beach.
Migrating turtles caught "stopping for snacks" along US East Coast
"We were really excited to find evidence that the Mid-Atlantic Bight serves as a major foraging ground for leatherbacks migrating," researcher Chris Sasso said.
Whales find "unusual" way of defending themselves against orca attacks
"They actually have this really reddish coloured poo," marine biologist Jennah Tucker said. "It's called defensive defecation."
New "ghost shark" species with giant eyes found thousands of feet deep
Creatures are distant cousins of sharks and rays, with their most recent common ancestor having lived over 400 million years ago.
Great white shark found decapitated on beach
The shark is thought to have been caught out at sea then brought to shore and decapitated, with its head still remaining missing.
Fishing gear risking extinction of endangered whale
Female North Atlantic right whales that had been entangled were found to be 47 percent less likely to breed than those that had not.
Florida mystery as critically endangered fish wash up dead and dying
These rare prehistoric-looking fish have been spotted thrashing around near the shores of the Florida Keys, with 20 specimens having been found dead.
Thought lost for 40 years, "globally important" Captain Cook finds reappear
Captain James Cook was a British explorer known for his three expeditions to the Pacific Ocean from 1768 to 1779.
Dolphin drowned in beach's controversial shark net, video shows
Non-target animals including rays, turtles, and marine mammals, such as dolphins and seals, have been caught in New South Wales shark nets.
"Baffling" new species found in ocean trench defies identification
"It looks like we have a great haul of new, undiscovered species," researcher Alex Rogers said. "We will be north of 100 new species."
Halloween "witch's finger" found in turtle's gut
"It's likely that turtles ingest the plastics that mostly closely resemble their foods," researcher Emily Duncan said.
Rarely-seen megamouth shark killed—and sold for just $17
This megamouth discovery marks only the sixth-ever time that one of these rare sharks has been spotted off the coast of Africa, and the first in East Africa.
Whale missing for 200 years suddenly spotted in ocean
The sighting shocked and elated marine experts, as gray whales were declared extinct from the Atlantic Ocean in the 1700s.
New species of giant ancient sea lizard with 'dagger-like teeth' found
The "positively demonic" marine reptile may have measured around 25 feet long and would have been a top predator millions of years ago.
Better Planet
Endangered whales are shrinking in size
Smaller North Atlantic right whales can't have as many babies, so climate-driven shrinking is further threatening the already critically endangered species.
New species of vampire squid found fossilized "with prey in its arms"
The 183 million-year-old find represents "a tremendously rare case of fossilized predator-prey interactions frozen in time."
Great white shark found dead on Florida beach
The shark was 13 feet long and weighed 1,500 pounds.
Endangered sawfish found dead with saw cut off—$20,000 reward for info
The sawfish that beached itself on the shore was found the next day with its saw-like rostrum cut from its body.