Sharks are known for their pearly whites, but did you know that a shark can shed more than 30,000 teeth over its lifespan? Unlike humans, who have a single set of 32 permanent teeth, when a shark ...

A Louisiana aquarium has a new star — and a mystery — on its hands after a baby shark was born in a habitat without any males. The Shreveport Aquarium announced last week that Yoko the swell ...

Shark embryos from tiger sharks will eat one another in the womb. That's because female sharks can be impregnated by multiple fathers simultaneously, creating multiple embryos from different ...

Measuring in at 56 centimeters (22 inches) in length, the organism is actually a fetus, extracted from the womb of a pregnant dusky shark, caught by fisherman Enrique Lucero León near Cerralvo Island ...

Sharks belong to the classification Chondrichthyes ... and even how they reproduce – some are actually cannibals in the womb and eat their siblings. But many of these species are at risk ...