The moon and water temperature affect the diving behaviour of sharks, researchers reported Tuesday, in a discovery that could help prevent fishermen from catching the marine predators inadvertently.
A man survived an attack by a shark off Australia's east coast Friday, but lost a finger and suffered a serious bite to the thigh.
A shark killed a surfer near Santa Barbara, California on Tuesday, officials said, nearly two years to the day after another rare but deadly attack off the same US beach.
Costa Rica has banned the import of shark fins, closing a legal loophole and targeting a link in a global production chain stretching to Asian markets, where shark fin soup is seen as a delicacy.
Threatened shark species are being used to make shark fin soup, a delicacy in Chinese cuisine, in several US cities, according to an unprecedented study based on DNA testing.