In the course of evolution, animals have repeatedly shifted from sexual to asexual reproduction. The first evidence of the consequences of parthenogenesis – a type of asexual reproduction – on genome ...

Stick insects that reproduce asexually cannot adapt as quickly in the course of evolution as sexually reproducing species, leading to a decrease in biological diversity, according to new research. An ...

Genetic diversity is essential to the survival of a species. It’s easy enough to maintain if a species reproduces sexually; an egg and a sperm combine genetic material from two creatures into one, ...

HENDERSONVILLE - Already a local favorite by visitors to Main Street's Aquarium and Shark Lab by Team ECCO, the female stingray named Charlotte is now a worldwide celebrity, and for a good reason — ...

(CNN) -- Two captive female California condors each produced a chick asexually years ago -- the only such instances ever recorded for that endangered species, researchers reported Thursday. And while ...

The first hatching of two California condor chicks from unfertilized eggs has been confirmed by conservation researchers at the San Diego Zoo. The San Diego Zoo Wildlife Alliance discovered the first ...

A shark born at Italy's Acquario Cala Gonone could be the first case of asexual reproduction in its species. The Sardinia-based facility says its female smooth-hound shark "Ispera" was born in a tank ...