Thelytokous parthenogenesis, that is, the production of diploid daughters from unfertilized eggs, may involve various cytological mechanisms, each having a different impact on the genetic structure of ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

For years scientists have known that some species of sharks, fish and lizards are capable of "virgin births," asexual reproduction known as parthenogenesis that occurs when unfertilized eggs develop.

Add Yahoo as a preferred source to see more of our stories on Google. Getting the job done. A female Asian water dragon (Physignathus cocincinus) produced a daughter (left) without the assistance of a ...

CHICAGO (WLS) -- At six and a half feet long zebra sharks are one of the largest species at Chicago's Shedd Aquarium. The endangered animals, which are native to Indonesia, have been a fixture at the ...

For 16 years, a female crocodile lived alone in a wildlife park in Costa Rica — until one day, more than a dozen eggs mysteriously appeared in her enclosure. 'Virgin births' have been widely ...

A shark pup has been born through parthenogenesis at Brookfield Zoo near Chicago. The baby epaulette shark hatched during the summer, and its mother has never shared a tank with a male.

In Telford's Exotic Zoo, life found a way. A casque-headed iguana has given birth to eight babies at the Shropshire wildlife park – without any contact with a male, via a phenomenon called ...

A Louisiana aquarium has a new star — and a mystery — on its hands after a baby shark was born in a habitat without any males. The Shreveport Aquarium announced last week that Yoko the swell shark — ...

An Asian water dragon hatched from an egg at the Smithsonian National Zoo, and her keepers were shocked. Why? Her mother had never been with a male water dragon. Through genetic testing, zoo ...