It has the tongue-twisting name "parthenogenesis." Kiessling: Parthenogenesis is the term that's applied to an egg that activates spontaneously on its own. This is relatively common in women.

The first documented “virgin birth” by a Burmese python, the world’s longest snake, was recorded in 2012 at the Louisville ...

Two possible explanations were proposed: either parthenogenesis occurred, allowing a female to produce offspring on her own, or delayed fertilization, where eggs are fertilized long after mating.

Those molecular samples have now revealed something completely unexpected: two of the California condor females produced young without a male partner, a phenomenon called parthenogenesis. The ...

W hen 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 ...