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.

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

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.

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…

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.

It just lured to the bait

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

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.

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

From National Geographic's 2014 Traveler Photo Contest.

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.

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

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?

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.

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.

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.

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.

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 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.