sharks

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What Scientists Found in Bahamian Sharks Is Alarming

Caffeine, painkillers, even cocaine found in blood samples from pollution-linked contamination

(Newser) - Sharks cruising off a far-flung Bahamian island are turning up with something unexpected in their blood: traces of caffeine, painkillers, and, in one case, cocaine. In a new study cited by CBS News , researchers tested blood from 85 sharks representing five species for two dozen legal and illegal drugs. Of...

Like Us, Sharks Pick Who They Hang Around With
Like Us, Sharks Pick Who
They Hang Around With
NEW STUDY
Mar 17, 2026 9:25 AM CDT

Like Us, Sharks Pick Who They Hang Around With

Long-term observations show bull sharks form selective, age- and sex-based bonds

(Newser) - Long thought to be solitary creatures, sharks continue to surprise us, demonstrating complex social relationships much like humans. A new study in Animal Behaviour tracked 184 bull sharks over six years at Fiji's Shark Reef Marine Reserve and found the predators form lasting social bonds, with patterns that go beyond...

Shark Turns Up in a Most Unexpected Place

Video provides first evidence of a shark cruising the frigid Antarctic Ocean

(Newser) - An ungainly barrel of a shark cruising languidly over a barren seabed far too deep for the sun's rays to illuminate was an unexpected sight. Many experts had thought sharks didn't exist in the frigid waters of Antarctica before this sleeper shark lumbered warily and briefly into the...

Ocean Acidification Might Take Some of the Bite Out of Sharks

Sharks are famous for their fearsome teeth, but increasingly acidic waters will make them weaker

(Newser) - Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put those weapons at risk. That is the takeaway from a study performed by a group of German scientists who tested...

Florida Deputies Help Rescue Trapped Shark

It was snagged on a crab trap buoy

(Newser) - A shark in trouble off Florida's Gulf Coast ended up getting help from an unlikely source: sheriff's deputies on routine patrol. The Manatee County Sheriff's Office Marine Unit says it was cruising near Manatee Public Beach on Friday when a dorsal fin breaking the surface looked just...

'Disheartening' News for Mediterranean's Great Whites

Species there is inching closer to extinction, thanks to illegal North African shark trade

(Newser) - Great white sharks have become so scarce in the Mediterranean that researchers now warn the regional population is edging toward extinction, with illegal fishing playing a central role. A team led by Virginia Tech scientist Francesco Ferretti, working with UK-based charity Blue Marine Foundation, reports that at least 40 great...

Nations Agree to Protections for Sharks

Backers argued overfishing is a threat

(Newser) - Governments at a wildlife trade conference have adopted greater protections for over 70 species of sharks and rays in the face of concerns that overfishing is driving some to the brink of extinction. The measures, approved Friday at the Convention on International Trade in Endangered Species of Wild Fauna and...

Woman, Man on Morning Swim Mauled by Shark—One Fatally

The 2 were taking an early swim in an Australia national park

(Newser) - A shark killed a woman and seriously wounded a man taking an early morning swim with her at a national park beach on Australia's east coast Thursday, police said. The attack occurred at Crowdy Bay National Park, which is known for beach camping, fishing spots, and hiking tracks 224...

Marine Biologist Injured in 'Extremely Rare' Shark Attack

Mauricio Hoyos was tagging species near Costa Rica's Cocos Island when he was ambushed

(Newser) - A Mexican marine biologist was seriously injured after he was attacked by a shark while working off Costa Rica's Pacific coast and transferred to a hospital in the country's capital on Monday, authorities said. Costa Rica's Fire Department said it had rescued 48-year-old Mauricio Hoyos from the...

Sharks Could Lose Their Teeth to Ocean Acidity
Sharks Could Lose Their
Teeth to Ocean Acidity
NEW STUDY
Sep 7, 2025 1:30 PM CDT

Sharks Could Lose Their Teeth to Ocean Acidity

Study warns rising acidity could erode sharks' hunting edge, transform ecosystems

(Newser) - Shark teeth might be the next casualty in the climate change saga: A new study suggests ocean acidification could leave these apex predators with a serious dental crisis. Researchers found that as oceans absorb more carbon dioxide and their pH levels drop, shark teeth start to corrode—potentially faster...

That's No Goldfish, but a One-of-a-Kind Shark
You've Never Seen
a Shark Like This
in case you missed it
Aug 30, 2025 6:00 AM CDT

You've Never Seen a Shark Like This

First known shark with xanthism and albinism observed in Costa Rica

(Newser) - It looks like a giant goldfish. But what anglers pulled in during a fishing trip near Costa Rica's Tortuguero National Park last year was, as far as we know, one of a kind. The nurse shark, cut loose from a fishing line, is what Gizmodo calls a "rare...

At Maine Beaches, a 'Pretty Crazy' Appearance

Great white shark is seen near popular beaches, sparking a warning from police

(Newser) - Reports of a large great white shark near some of Maine's most popular beaches have prompted police in one coastal town to issue a warning on Tuesday. Scarborough's marine resource officer got word of the roughly 10- to 12-foot shark on Monday, police said. The shark was spotted...

Shark Bites Florida Surfer
Shark Bites Florida Surfer
Jul 8, 2025 3:00 AM CDT

Shark Bites Florida Surfer

Man is expected to recover, and his mom says he will surf again

(Newser) - A shark bit the arm of a 40-year-old man as he surfed at Florida's New Smyrna Beach Sunday, the South Florida Sun-Sentinel reports. Matt Bender of Winter Park, who WFTV says is "well-known" in the local surfing community, underwent surgery and was expected to recover—and surf again...

9-Year-Old Survives Shark Attack in Florida

Leah Lendel's hand had to be reconstructed following bite off Florida

(Newser) - A 9-year-old girl has survived a terrifying shark encounter off Florida and remarkably retains the use of her right hand despite that it was "mostly torn off," per Gulf Coast News . Leah Lendel was snorkeling off Boca Grande, about 4 feet from her mother, on Wednesday when she...

Trump Pardons Divers Who Freed 19 Sharks

Men believed they had stumbled upon an illegal fishing line

(Newser) - Two South Florida shark divers convicted of theft for freeing 19 sharks and a giant grouper from a fisherman's longline several miles from shore have been pardoned by President Trump, the AP reports. Pardons for Tanner Mansell and John Moore Jr. were signed Wednesday. They had been convicted in...

Man Finishes Epic Swim Around Martha's Vineyard

Lewis Pugh challenged icy waters to spotlight shark conservation efforts

(Newser) - Braving icy waters and relentless waves, endurance swimmer Lewis Pugh has become the first swimmer to circle Martha's Vineyard, launching a bold campaign to change the way we see sharks ahead of Jaws' 50th anniversary. The 55-year-old British-South African swimmer completed a 62-mile swim around the island off...

Swimmer Circles Martha's Vineyard, in the Name of Sharks

Endurance athlete Lewis Pugh takes to icy waters off Massachusetts to highlight conservation efforts

(Newser) - Endurance swimmer Lewis Pugh is taking on a new challenge: a 62-mile swim around Martha's Vineyard, the island made famous as the filming site for the 1975 film Jaws. The British-South African athlete, who has swum in some of the world's toughest conditions—including every ocean, near...

Aussies Rescue Stranded Great White Shark

'We definitely got it into some deeper water, so hopefully it's swimming still'

(Newser) - Nash Core admits he felt some fear when he and his 11-year-old son waded into the ocean off the Australian coast to help rescue a 10-foot great white shark stranded in shallow water. Three local men managed to return the distressed animal from a sand bank into deeper water after...

Man Swimming With Sharks Killed in Rare Attack in Israel

Remains found of missing man along Israeli shore after beachgoers ignored safety warnings

(Newser) - Israeli police have found the remains of a swimmer who vanished in the Mediterranean Sea after heading out into the water near a gathering of sharks. The incident occurred on Monday at a beach in Hadera, and Israeli authorities closed that beach and others nearby following the apparent attack,...

Behold, the 'Sharktopus'
Shark's Orange
'Hat' Leaves
Researchers
Stunned
in case you missed it
Mar 29, 2025 4:15 PM CDT

Shark's Orange 'Hat' Leaves Researchers Stunned

It was actually an octopus, making this a 'sharktopus' sighting

(Newser) - "One of the best things about being a marine scientist is that you never know what you might see next in the sea," writes Rochelle Constantine of the University of Auckland, who did not expect to come across an octopus riding a shark. That's exactly what researchers...

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