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.

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 ...

When a mommy shark and a daddy shark love each other very much, sometimes they decide to have a baby shark. But sometimes ...

Nature is capable of some pretty incredible phenomena and even a few mysteries. That's become all the more apparent recently ...