Sand tiger sharks, also known as gray nurse sharks, have a deceivingly ferocious look. They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the ...

Weirdest of all was probably Helicoprion (bottom), which had a lower jaw shaped like a buzz saw ... its favourite food of stingrays in the sand. Not all sharks live in the sea.

OARAI, Ibaraki Prefecture--A sand tiger shark was born at the Aqua World Ibaraki Prefectural Oarai Aquarium here, the first successful breeding of the species in Japan. Only four other aquariums ...

He noted that the waters off Long Island are “healthy” and the conditions are “just right for baby sharks for a number of ...