Selective extinction of apex predators suggests a shift to more generalist diets. A global catastrophe 66 million years ago led to the extinction of all non-avian dinosaurs, and large marine reptiles like mosasaurs and plesiosaurs. But what happened to the sharks? According to a study of sharks’ teeth publishing August […]

Whale Shark with dorsal fin damage. Credit: Marine Conservation Society Seychelles A new study has for the first time explored the extraordinary rate at which the world’s largest fish, the endangered whale shark, can recover from its injuries. The findings reveal that lacerations and abrasions, increasingly caused through collisions with […]

The scalloped hammerhead shark is critically endangered from overfishing. MARK CONLIN/VW PICS/UIG VIA GETTY IMAGE Shark populations in the high seas have fallen by 71% since 1970, researchers have found. The main cause is overfishing, which has put three-quarters of these species at risk of extinction. “It’s the first big […]

A new study shows that the body size of the iconic gigantic Megalodon or megatooth shark, about 50 feet (15 meters) in length, is indeed anomalously large compared to body sizes of its relatives. Formally called Otodus megalodon, the fossil shark that lived nearly worldwide roughly 15-3.6 million years ago is […]

Nova Southeastern University researchers lead team studying smooth hammerhead sharks. They are some of the most iconic and unique-looking creatures in our oceans. While some may think they look a bit “odd,” one thing researchers agree on is that little is known about hammerhead sharks. Many of the 10 hammerhead […]

ANIMATION Sharks’ non-bony skeletons were thought to be the template before bony internal skeletons evolved, but a new fossil discovery suggests otherwise. The discovery of a 410-million-year-old fish fossil with a bony skull suggests the lighter skeletons of sharks may have evolved from bony ancestors, rather than the other way […]

A new study led by the University of Bristol and Swansea University has revealed the size of the legendary giant shark Megalodon, including fins that are as large as an adult human. There is a grim fascination in determining the size of the largest sharks, but this can be difficult for fossil […]

Global survey reveals sharks are functionally extinct on many of the world’s reefs, but hope lies in key conservation measures. Though many people find them intimidating, menacing or just plain scary, sharks are vital to the health of the world’s oceans. These often misunderstood creatures are found in just about […]

Climate change is changing already extreme nursery environments for baby blacktip reef sharks. Credit: Tom Vierus, www.tomvierus.com Scientists can now explain how baby reef sharks tolerate living in the sometimes-extreme environments of their nurseries — but, they also say these habitats face an uncertain future which may leave newborn sharks […]

Great White Shark People have been developing different forms of shark repellent for decades — the military even issued a chemical shark repellent called “Shark Chaser” to pilots, sailors and astronauts(!) from the end of World War II through the start of the Vietnam War. Thing is … it didn’t […]