Instead of penises, male sharks use two claspers to get sperm into females. And about 15 shark species can have young without males, with females self-fertilizing eggs. This is known as ...

"Our knowledge of adult whale sharks, particularly their ... Shortly afterwards, a male (presumed to be an adult due to its calcified claspers and 8.5-meter size) appeared and began following ...

er, claspers and cloaca ... The encounter involved a male whale shark off the coast of Western Australia closely trailing a smaller female; the female was likely immature, given her size of ...

The Shreveport Aquarium in Louisiana is investigating the mysterious birth of a baby swell shark, despite no male sharks ...

A swell shark egg has mysteriously hatched despite no male sharks being present in the tank. The pup, nicknamed Yoko, hatched on Jan. 3 at the Shreveport Aquarium in Louisiana with help from the ...

A small shark swimming around a Louisiana aquarium holds a mystery in its DNA. Yoko the swell shark hatched from an egg that was discovered in a puzzling place — an all-female tank, the Shreveport ...

Aquarium staff confirmed neither of the female sharks in the tank had been around a male in over three years. “This does suggest that either a phenomenon called parthenogenesis, a rare form of ...

A Louisiana aquarium is investigating how a baby shark hatched without a male present for three years. Experts suspect delayed fertilization or parthenogenesis, a rare form of asexual reproduction.