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.

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 ...

Aquarium staff have also predicted that the baby shark was a result of delayed fertilization, where fertilization occurs long ...

Experts say the case is either a rare form of asexual reproduction or an instance of (very) delayed fertilization ...

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

Experts believe this could be a case of parthenogenesis, a rare form of asexual reproduction where a female can produce offspring without a male, or delayed fertilisation, where the fertilisation ...

According to the aquarium, the shark egg was first spotted eight months ago. The shark hatched a few weeks ago and the team ...

A Louisiana aquarium welcomed a baby shark born under mysterious conditions, the aquarium said Friday. The swell shark, nicknamed Yoko, hatched on Jan. 3, according to the Shreveport Aquarium. What ...