Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David ...

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 ...

"By combining aquarium and wild sand tiger shark wound healing observations ... so the male often grasps the female with his teeth, leaving bloody wounds on her body in the process.

Curtis was on a fishing "trip of a lifetime" with friends in South Africa when he was attacked by the huge ragged tooth shark, also known as a sand tiger shark. They had just landed the whopper ...

Their skin is covered with denticles, tooth-like scales that differ from ... while probing the uterus of a pregnant sand tiger shark, was bitten by an unborn pup. The strongest shark bite: The ...

The 6ft (1.8m) ragged tooth shark, also known as a sand tiger shark, had been caught just three days into their fishing trip. Fortunately, the powerful predator released its grip after the initial ...

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 ...