A look at the curious history of Venn diagrams and the way they blend logic with geometry ...

Facultative parthenogenesis, which is what is being seen in these common smooth-hound sharks, allows an animal to reproduce both sexually and asexually, depending on the circumstances.

In a surprising development in marine biology, recurrent parthenogenesis has been documented for the first time in the shark Mustelus mustelus, also known as the common smooth-hound. This discovery, ...

Is it a miracle? No, it's parthenogenesis and despite plenty of research, not everything is yet known about how animals reproduce without mates.

More animals can occasionally reproduce asexually through a process called parthenogenesis than scientists realized.

This unusual phenomenon, known as parthenogenesis or 'virgin birth', continues to perplex scientists and captivate nature enthusiasts alike. Produced by Natalia Guerrero & Sanjana Bhambhani ...

A North Carolina stingray's surprise pregnancy is most likely the product of parthenogenesis. National Geographic's Christine Dell'Amore shared the details of how this works.

A stingray in Hendersonville is about to give birth through parthenogenesis, according to expert, who says it's impossible for shark to mate with ray.

A stingray in Hendersonville is about to give birth through parthenogenesis, according to expert, who says it's impossible for shark to mate with ray.

A North Carolina aquarium announced that a stingray who has not been around a male companion in eight years is pregnant. Parthenogenesis, or asexual reproduction, is a rare phenomenon that can ...