Sharks and humans have "fully vascularized" hearts, she said. That's in contrast to most bony fish species, which have no coronary arteries and rely on their hearts to pick up whatever oxygen is left ...

A recent human-shark interaction in Australia had a positive ending. When a Great white shark found itself stranded off the southern coast of Australia, three beachgoers and a father-son duo helped ...

CHATHAM, Mass. — A boy's love of sharks is getting some major attention as he battles heart disease, and even caught the eye of the Atlantic White Shark Conservancy in Chatham, Massachusetts. The ...

This time of year, it's hard to escape sharks – on TV at least. But perhaps that heartbeat-like theme from "Jaws" – ba-dump, ba-dump – has you wondering, "What might I learn about my own heart from a ...