A new study suggests that climate change could cause sharks to become "right-handed" and deadlier, which could send marine ecosystems into imbalance. A group of Port Jackson sharks, when incubated in water warmed to projected ocean temperatures at the turn of the century if greenhouse gas emissions continue at their current pace, most became "right-handed," which could cause changes in behavior that impacts marine ecosystems, according to research published in the journal Symmetry.

A German tourist bitten by a shark while she was vacationing in Hawaii died Wednesday, a week after the attack.

Animal conservation groups are enraged over the brutal slaughtering of thousands of dolphins off the coast of Peru, where the mammals are used as shark bait for an Asian delicacy known as shark fin soup. Shark fin soup is a very expensive dish in China, among other Asian countries. The extravagant dish comes at a much higher cost - not only on a humane and ethical level, but the price paid could be the disruption of our oceans' entire ecosystem.

Scientists have finally identified a new species of megamouth shark that prowled the oceans about 23 million years ago, nearly 50 years after the first teeth were discovered and then forgotten. The ancient shark likely prowled both deep and shallow waters for plankton and fish, using its massive mouth to filter food.

The University of South Carolina is home to more than 200 years of history and tradition, rising from a single building in 1805 on what would become the heart of the campus, the Horseshoe.

Two quick-thinking men on Newfoundland's northeast coast managed to save a Greenland shark from choking to death on a large piece of moose hide this past weekend.

A man fishing from a kayak off a Hawaiian island has died after being bitten by a shark, authorities said Monday. The incident was the latest in an alarming spate of shark attacks in the state this year.

A tumor appears on the lower jaw of a great white shark, near the Neptune Islands, South Australia. It's the first documented tumor in this species.

A SURFER went into "fight mode" after being attacked by a shark - grabbing the beast by its snout and digging his fingers into its face in a desperate bid to free himself from its jaws.

A Hong Kong-based conservation group claims a Zhejiang company is running the world's largest shark abattoir, processing hundreds of endangered specimens a year to produce health supplements and meat for restaurants. The factory on the southeastern coast of the province processes more than 600 endangered whale sharks a year, as well as dealing in two other threatened species of shark, according to a four-year investigation by the marine conservation group WildLifeRisk.

Sharks are often seen as "living fossils," examples of evolutionary excellence that have not altered their design significantly since they came into existence. Evolutionary biologists have theorized specifically that the creatures' respiratory systems, fed by efficient gills, were present in the species since they first diverged on Earth more than 400 million years ago. But researchers have recently discovered a fossil record that appears to refute that theory.

Sharks turn out to be more modern and sleek than anyone had ever imagined, given a new study that negates a prior theory that today’s sharks are “living fossils,” changing little over time.

Jonathan travels to Mexico for an up close encounter with Bull sharks, infamous for the fact that they are known to be the most dangerous species of shark to humans. He gets to try a chain mail anti-shark suit, and meets a biologist who is studying the sharks to learn more about their population and habits.

Scientists in Australia tagged a healthy 9-foot great white shark as part of program to track these animals. Four months later they found the tracking device washed up on a beach. Something—something really big—had eaten this apex predator. But what creature could dine on such ferocious prey?

The ocean’s apex predator does kill people, but we are much more devastating to sharks than they are to us. And now, conservation-minded scientists are learning more about what makes sharks tick. The Star's Sandro Contenta reports from the Bahamas where he dove in for his new Star Dispatches ebook

A report that scientists are calling one of the most comprehensive studies of great white sharks finds their numbers are surging in the ocean off the Eastern U.S. and Canada after decades of decline — bad news if you’re a seal, but something experts say shouldn't instill fear in beachgoers this summer.

From National Geographic's 2014 Traveler Photo Contest.

Attacks by great white sharks are on the rise, an expert says. But there are ways to reduce risk.

In 1842, the infamous showman P.T. Barnum unveiled a truly bizarre creature. In his autobiography, Barnum described it as “an ugly, dried-up, black-looking, and diminutive specimen… its arms thrown up, giving it the appearance of having died in great agony.” The Feejee mermaid, as the mummified remains were called, possessed the torso of a monkey with the tail of a fish.

Faked documentaries? Shady publicity stunts? Discovery Channel's Shark Week might be entertaining, but it's all showmanship, little substance.

It just lured to the bait

Sharks use bioluminescence and specially adapted eyes to operate in deep ocean water where sunlight barely penetrates. Sharks use their ability to glow in social interactions like hunting and seeking out mates.

Miami| An Oregon couple's honeymoon vacation in Florida took a dramatic turn of events as the newly wed took a selfie of himself just moments before he fell victim to a deadly shark attack. The 34 year old insurance salesman died in a gruesome fashion, losing great quantities of blood as he was being transported…

A great white attacks a submersible "SharkCam" deployed by the Woods Hole Oceanographic Institution, shattering its teeth on the metal biteproof cylinder. Off Baja California, the crew of a research boat feeds a single great white 400 pounds of tuna in a boyish science test to see how much one shark can eat. A TV crew travels to New Zealand on a campy expedition to document a mythical giant shark.

There's always a bigger fish...Fisherman left shocked after a giant grouper eats WHOLE the shark they had just caught.

A schoolteacher's dramatic photo of a great white shark has gone viral, inspiring a lively Internet debate about whether it's ethical to bait sharks, many of which are threatened species, so that tourists can see them up close.

Scientists researching the severe decline in Alaska's Steller sea lion population have a fingered a new possible suspect for the drop: Pacific sleeper sharks, a species previously thought of as a scavenger and fish-eater.

The Megalodon, an enormous marine predator, disappeared some 2.6 million years ago, new research finds.

Greenland sharks are absurdly slow and mostly blind, yet they may have spread far beyond the poles

Even the parents of this Perth man who jumped onto a whale circled by hungry sharks say their son is an idiot.

A pregnant shark was found dead on a Cape Town, South Africa, beach. Although the scene was heartbreaking, witnesses noticed unusual movement in the shark’s belly.

Over the past few months, ruptures have been appearing in the submerged Asia-America Gateway (AAG) cable system that supplies a great deal of Southeast Asia with its Internet. This week, a hole appeared that was so severe, it throttled connections in Vietnam, causing millions of its residents to deal with Internet that was either incredibly slow, or frustratingly sporadic.

It has up to 47 rows of teeth, grows to lengths of two metres and is mostly found in ocean depths below 400 metres - or in a Taiwanese fish market.

An extraordinarily rare ocean discovery of an inches-long 'pocket shark' has been made. Sharks come in all shapes and sizes and are best known as a dominant predator in the marine food web. Understanding their movements, behaviors and anatomies gives fishery managers a better idea of their diets and relationships with other species.