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

According to the aquarium, the shark egg was first spotted eight months ago. The shark hatched a few weeks ago and the team at the aquarium is working to determine how it was conceived. Once the shark is big enough for a blood draw,

In a remarkable development, the Shreveport Aquarium has announced the hatching of a healthy female swell shark pup named Yoko. This event is particularly intriguing as it occurred without male sharks,

The female swell shark pup, nicknamed Yoko, hatched at the Shreveport Aquarium in Louisiana, despite no male sharks being present in the tank.