sharks

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Ocean Census Surprises Scientists
Ocean Census Surprises Scientists
Nov 10, 2008 10:32 AM CST

Ocean Census Surprises Scientists

Effort to chart all undersea life by 2010 finds 5K new species

(Newser) - Somewhere under the Antarctic Ocean, brittle starfish completely cover a submerged mountain. In the Pacific, sharks congregate in a region with few food sources but plenty of opportunity for romance. Those facts, along with an accounting of more than 5,000 newly discovered species, are part of the results of...

Scientists Confirm Shark's Virgin Birth

Virginia aquarium blacktip got pregnant without need for shark sperm

(Newser) - A blacktip shark at a Virginia aquarium got pregnant despite not having been around a male of her kind for a decade, the Virginian-Pilot reports. Scientists have long suspected that sharks, like some smaller vertebrates, could reproduce asexually but this is only the second confirmed case. Tests showed the baby...

Sea of New Ocean Life Discovered

Scientists find new crustaceans, rays, sharks and coral

(Newser) - Over 100 new ocean species have been discovered in coral reefs off Western Australia during a global census of marine life. They include exotic soft corals, new kinds of jellyfish, rays and shellfish, and parasites that feed on the tongues of fish, reports the Sydney Morning Herald. The discoveries are...

Polar Bears May Have Yet Another Worry: Sharks

Bone is found in the stomach of a Greenland shark

(Newser) - As if polar bears in the North Pole didn't have enough to worry about these days: Scientists have found the bone of a young bear in the stomach of a Greenland shark, Reuters reports. The unprecedented discovery prompts a "million dollar question," says one researcher: Do the bears...

A Shark-Hater Fesses Up
 A Shark-Hater Fesses Up 
OPINION
Aug 8, 2008 12:34 PM CDT

A Shark-Hater Fesses Up

Distaste for 'tigers of the deep' is no longer politically correect

(Newser) - Sharks were once eminently despicable creatures. Remember Jaws? Now, though, perceptions have shifted—they’re seen as endangered, misunderstood animals who chomp humans only when they mistake them for seals. (That's why they take one bite and "sheepishly" move on.) It's a source of great disappointment to Joe...

Ocean Sharks Face Extinction
 Ocean Sharks Face Extinction 
May 22, 2008 1:40 PM CDT

Ocean Sharks Face Extinction

Study finds severe effects of intentional, unintentional fishing

(Newser) - Ocean sharks are threatened with extinction, with 11 species designated “high-risk” by the International Union for Conservation of Nature and five more also in danger. Sharks are dwindling from intentional fishing, which targets them for their meat and fins, and “bycatch” fishing that lands them in nets meant...

Fewer Sharks, But More Attacks
Fewer Sharks, But More Attacks
Feb 27, 2008 4:26 PM CST

Fewer Sharks, But More Attacks

Growing human presence in water will keep encounters rising, scientists say

(Newser) - Shark populations are way down, but attacks on humans are up, LiveScience reports. There were 71 shark attacks worldwide in 2007, continuing a four-year upswing, says shark expert George Burgess, although populations of the fish have shrunk 50% during the past 20 years. Even so, as human populations expand rapidly,...

New Yorkers Push 6-Foot Beached Shark Back to Sea

Then they're barred from swimming as 'Jaws' cruises the Rockaways

(Newser) - Never ones to shrink from a challenge, a group of sentimental New Yorkers yesterday pushed a struggling six-foot beached shark back to sea in a "Jaws-dropping" drama off the Rockaways, reports the New York Daily News. "It was freaking out. Its tail was flopping everywhere," said a...

Shark Births Fatherless Baby
Shark Births Fatherless Baby
May 23, 2007 2:50 PM CDT

Shark Births Fatherless Baby

Female hammerheads can fertilize their own eggs, say scientists

(Newser) - Irish and American scientists, using new techniques, confirmed that a female hammerhead shark at the Henry Doorly Zoo in Nebraska gave birth to a pup in 2001— without having sex. A male tiger shark was suspected to be the father at first, but the team's genetic analysis shows no sign...

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