With a menacing grin, needle-like teeth, and a sharp pointed snout, a gray nurse shark isn’t a creature that most people would want to encounter. But Shalise Leesfield isn’t most people. The ...

Host Bertie Gregory filming a ragged tooth shark underwater. "Sharks Up Close With Bertie Gregory" premieres on National Geographic on July 5. Photograph By Dan Beecham, National Geographic Slashing ...

AS A MARINE enthusiast, I am thrilled to share my knowledge about encountering ragged-tooth sharks, also known as sand tiger or grey nurse sharks, in South Africa. These fascinating creatures can be ...

A new species of shark has been added to the list of Bermuda’s fish fauna. The ragged-tooth shark was discovered in Bermuda’s waters after a fisherman caught and released it of the east coast of the ...

Although sharks aren’t the mindless man-eaters they are sometimes made out to be, experts know that staying safe involves skill, knowledge, and practice. Host Bertie Gregory filming a ragged tooth ...

Shark cannibalism? A bizarre photo from University of Delaware oceanography researchers sure looks like it, and manages the unlikely feat of making sharks look even more frightening than they already ...