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.

A small shark swimming around a Louisiana aquarium holds a mystery in its DNA. Yoko the swell shark hatched from an egg that was discovered in a puzzling place — an all-female tank, the Shreveport Aquarium announced. “It really proves that life ... uh ... finds a way,” curator Greg Barrick said in a Jan. 24 news release.

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.

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

When a mommy shark and a daddy shark love each other very much, sometimes they decide to have a baby shark. But sometimes when a lady shark is just chillin' with her girlfriend shark, and no dude sharks in sight,

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,

Baby shark born in aquarium tank that only houses females - ‘It really proves that life... uh... finds a way’ said the aquarium’s curator of live animals Greg Barrick

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.

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.