Developmental biologist Alexis Sperling became obsessed with something she saw in the lab when she was studying for her PhD. A praying mantis had young spontaneously, without having sex with a male. A virgin had had children.
This ability has never been observed in mammals, including of course humans, but in the rest of the animal world there are certain species capable of doing it. Many of the cases have been observed in zoos where the females had spent years alone without the possibility of mating.
In 2015, a team discovered one of the first cases of sexless reproduction in the wild: the smalltooth saw fish, which was on the brink of extinction. And just two years ago, at the San Diego Zoo, two females of the endangered California condor gave birth asexually, despite the fact that in this case there were breeding males available.
Hellbound and Down 