Yoko is believed to be the result of parthenogenesis, a rare type of asexual reproduction where offspring develop from ...

The pup hatched in a tank housing two female sharks who hadn't been around any male sharks in over three years.

A small shark swimming around a Louisiana aquarium holds a mystery in its DNA. Yoko the swell shark hatched from an egg that ...

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

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 ...

Yoko the swell shark was born in a habitat of all-female sharks who hadn't seen a male in years. The aquarium has two ...

A baby swell shark hatched at the Shreveport Aquarium despite no male sharks being present for three years, according to the aquarium. Hurricane-prone states Get the USA TODAY app Start the day ...