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

An aquarium is trying to figure out how it gained a new baby shark in one of its tanks where only two females were present. The swell shark, affectionately named Yoko after the Chumash word for shark ( ‘onyoko,

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,

There’s a paternity mystery to be solved in Louisiana. Earlier this month, a swell shark egg successfully hatched at the Shreveport Aquarium. The egg was first spotted by the aquarium’s team about eight months ago and had been closely monitored.