Sharks

Ordinarily, if you want liquid to flow in only one direction through a pipe, that pipe has to have a flap-type valve – which could fail. Now, scientists have created a new type of more robust one-way-flow pipe, which was inspired by shark intestines.

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.

Hard though it may be to believe, there has apparently never been a confirmed sighting of a live newborn great white shark. Such may no longer be the case, however, thanks to recently analyzed aerial drone footage shot in California.

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.

Mangroves may not be the first thing that comes to mind when you think of a forest, but they're both incredible, unique ecosystems and serve as a structural and water-cleaning coastguard. These photos capture the wondrous, otherworldly ecosystems.

In the third BMC Ecology and Evolution image competition, a stunning snap of the invasive orange pore fungus (Favolaschia calocera) has not just encroached on native species’ territory but taken out the top spot in the annual contest.

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.