Sharks

Everyone's favorite prehistoric shark may have been much sleeker and much larger than previously thought. A new study suggests that the megalodon wasn't as stocky as the great white shark, and that it could have reached over 24 m (80 ft) in length.

Researchers have found compelling evidence to confirm that a specific pod of clever killer whiles in the Gulf of California has developed an astonishing new skill: hunting enormous whale sharks by attacking their undersides.

If you're a surfer who doesn't want to be attacked by great white sharks, your surfboard should be as dark and stealthy as possible … right? Perhaps not, as a new Australian study suggests that a lit-up board may be better at keeping the sharks away.

The fossil of an extremely unlucky dugong has been uncovered. The old sea cow had a pretty bad day about 20 million years ago when it was eaten by both a crocodile and a shark.

In the event of a shark attack, it's very important to determine which shark species was responsible. A new study indicates that readily available medical gauze can be used by first responders to obtain that information.

While you're more likely to win the lottery than become a tasty snack for a great white, shark attacks have long been a real fear for beachgoers. While attacks and fatalities look to be on the rise, scientists are yet to pinpoint exactly why.

The Disney-esque hues on bluespotted ribbontail rays come from a unique arrangement of nanostructures, say researchers. The findings, along with those gleaned from studying blue sharks, could help lead to new chemical-free color techniques.

For the first time ever, a lone orca has been observed killing and eating a great white shark. Although orcas were already known to hunt great whites in packs or pairs, one had never been seen going solo before. The finding suggests the emergence of a new hunting strategy.

Most of us picture megalodon as a Jason-Statham-hunting monster that looked like a giant great white shark, but that probably wasn’t the case. A new study re-examines fossil evidence and suggests the creature was longer and more slender than thought.

Scientists have used fossilized megalodon teeth to estimate the ancient shark’s body temperature, and found it wasn’t exactly a cold-blooded killer. Strangely enough, that might have contributed to its downfall.

In a surprising first, researchers found that scalloped hammerhead sharks act like air-breathing marine mammals, holding their breath to stay warm when they deep-dive into cold water for food and making them vulnerable to humanity's deep-sea exploits.

The majority of shark species are threatened with extinction, so it's crucial to protect the "pupping" areas where females give birth to live young. A new satellite-linked device, known as the BAT, lets scientists know the locations of those areas.