When a shark egg appeared one day in a shark tank at a Louisiana aquarium, staff were puzzled. That’s because the tank only has two sharks in it — and they’re both female.

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,

The Shreveport Aquarium in Louisiana is investigating the mysterious birth of a baby swell shark, despite no male sharks being present in the tank for three years.

Nature is capable of some pretty incredible phenomena and even a few mysteries. That's become all the more apparent recently at Shreveport Aquarium in Louisiana, where the team is celebrating the hatching of an egg that seems to have only one parent.

In a rare case of fertilisation, a shark was born in an aquarium without the presence of a male specimen, causing a stir in the scientific community as they investigate the unusual occurrence. The egg was discovered at the Shreveport Aquarium in Louisiana,

Officials with the Shreveport Aquarium recently announced the unusual birth of a swell shark pup in a tank where only two female sharks were present.