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 possible explanations — and hopes to get confirmation in the coming months.

A female swell shark gives birth to a pup without coming in contact with a male, and now scientists are wondering how this is ...

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

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 ...

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 ...

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 ...