News

The elongated “teeth” that give sawfish (Pristis pristis) their name aren’t actual teeth, but hardened, modified scales embedded along the rostrum. For decades, some cockfighters have carved these structures into sharp spurs that they attach to a rooster’s legs before a fight.

A common shoreline barnacle has been documented piercing deep-sea sharks and extracting nutrients directly from their flesh, marking a complete transition from filter feeding to parasitism.

A new study has documented microplastics inside mermaid’s purses, the protective egg cases that shield developing shark embryos from the outside world until they are ready to hatch.

Fishers along Kerala’s coast have now helped save 54 whale sharks, animals so large that they seem almost unreal when seen up close, and yet so helpless when trapped in a net meant for much smaller creatures.

The Southern Ocean is frigid, remote and punishingly cold, with temperatures dipping below zero. Which is why new footage captured near the South Shetland Islands is so remarkable: for the first time, a shark has been recorded on video in the Southern Ocean itself.

The record contributes to current knowledge of the species’ regional distribution and provides additional information on its reproductive occurrence in the area.

Thousands of protected and critically endangered sea animals were killed after being caught in nets used by crayfishing vessels in Ireland’s only marine national park, new research shows.

Artificial light from major coastal cities can disrupt the nighttime biology of sharks, according to new research that provides the first-ever measurements of melatonin—a hormone tied to biological rhythms—in wild sharks.

Shark and ray populations are struggling across the world due to overfishing and other threats. A new report delineates 816 areas of the ocean that should be protected to help them recover.

A new study using advanced artificial intelligence (AI) has revealed that the asteroid strike that wiped out the dinosaurs 66 million years ago caused only a modest decline in shark and ray species.