As vaccines candidates are being developed to cure coronavirus, some developers use squalene - an ingredient found in shark liver oil. Wildlife experts fear that millions of sharks may be killed if vaccine developers don't look for alternative sources.

Grey reef sharks work together and form social groups that can last for years, according to a study. Scientists who monitored a shark population off the remote Palmyra Atoll, to the south of Hawaii in the Pacific Ocean, noticed the predators formed tangled webs of social bonds.

The partial skull of an armoured fish that swam in the oceans over 400m years ago could turn the evolutionary history of sharks on its head, researchers have said. Bony fish, such as salmon and tuna, as well as almost all terrestrial vertebrates, from birds to humans, have skeletons that end up made of bone. However, the skeletons of sharks are made from a softer material called cartilage – even in adults.

There is a place in Africa where two ancient predators come face to face - the shark and the crocodile. Usually worlds apart the two are forced to share the waters of a cozy bay and compete for the same prize. For many of the inhabitants this is a dangerous land. For a young crocodile life is particularly challenging. This is his story - a journey into predator bay.

Sharks produce squalene, a natural oil made in their livers, which is an ingredient in several COVID-19 vaccine candidates.

Around half a million sharks may be slaughtered in an effort to make a Covid-19 vaccine, wildlife experts have claimed. The top predators are harvested for squalene, a natural oil made in the liver of sharks, which is used medicine - including in current flu jabs.

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