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

In January, a baby shark was born in a tank containing only two female swell sharks at the Shreveport Aquarium. It could be a ...

The arrival of a baby swell shark at an aquarium in Louisiana has caused a wave of excitement, after the egg hatched despite ...

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 bizarre mystery has emerged after a female shark has given birth whilst living in an all-female tank. Shreveport Aquarium, ...

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

On Jan. 3, a swell shark egg hatched at Shreveport Aquarium in Shreveport, Louisiana. The egg was discovered by aquarium staff in a female shark tank about eight months ago, but it may have remained ...

Scientists are studying whether a phenomenon called parthenogenesis, a rare form of asexual reproduction, or delayed fertilization, where fertilization occurs long after mating, could have occurred.

Aquarium staff in Louisiana have been left baffled by a miraculous 'virgin birth' in their shark exhibit. 'Yoko' the young swell shark (Cephaloscyllium ventriosum) was born in an all-female tank ...

The birth of a baby shark at Shreveport aquarium has flummoxed marine experts. The newborn hatched in a tank with no male presence and whose only inhabitants were female sharks. Though the aquarium's ...

A Louisiana aquarium welcomed a new baby shark to its facilities earlier this month, but staff are unsure of exactly where it came from. On Jan. 3, a swell shark egg hatched at Shreveport Aquarium ...