Piranhas, known for their sharp teeth and powerful jaws, are efficient hunters in South American freshwater ecosystems. They exhibit complex social behaviour, hunting in schools and using advanced ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. The Bay Bay Area-raised host Ericka Cruz Guevarra brings you context and ...

Thousands of flesh-eating piranhas have infested a Brazilian river beach popular with tourists, biting at least 15 unwary swimmers. Thousands of flesh-eating piranhas have infested a Brazilian river ...

Piranha is a general name used to describe a group of freshwater fish with a fearsome reputation when it comes to feeding. There are between 40 and 60 different species; none grow larger than two feet ...

(via Deep Look) Known as sand piranhas, Excirolana chiltoni are tiny crustaceans that nibble at your feet – and draw blood – if you hang out on the wet sand at the beach. They live on the Pacific ...