parthenogenesis – News Stories About parthenogenesis - Page 1

Croc's Virgin Birth Suggests Dinos Were Also Capable

Virgin Birth Is a First
for This Species

NEW STUDY

Jun 7, 2023 12:30 PM CDT

Virgin Birth Is a First for This Species

Parthenogenesis found in crocodile suggests that dinosaurs may have been capable as well

(Newser) - A crocodile has for the first time been found capable of a virgin birth—a finding that suggests the species' dinosaur cousins were capable of the same feat. An 18-year-old female crocodile who'd been isolated from other crocodiles since the age of 2 laid 14 eggs at a Costa...

Researchers Document First Virgin Births by Condors

Genetic Testing
Confirms Condors'
Virgin Births

new study

Oct 29, 2021 4:35 PM CDT

Genetic Testing Confirms Condors' Virgin Births

Parthenogenesis has been documented in other species, but not this one

(Newser) - Endangered California condors can have "virgin births," according to a new study. Researchers with the San Diego Zoo Wildlife Alliance said genetic testing confirmed that two male chicks hatched in 2001 and 2009 from unfertilized eggs were related to their mothers. Neither was related to a male. The...

Scientists Confirm
Shark's Virgin Birth

Oct 10, 2008 8:34 AM CDT

Scientists Confirm Shark's Virgin Birth

Virginia aquarium blacktip got pregnant without need for shark sperm

(Newser) - A blacktip shark at a Virginia aquarium got pregnant despite not having been around a male of her kind for a decade, the Virginian-Pilot reports. Scientists have long suspected that sharks, like some smaller vertebrates, could reproduce asexually but this is only the second confirmed case. Tests showed the baby...

Fake Cloner Stumbled
Onto Major
Stem Cell Find

Aug 3, 2007 7:22 AM CDT

Fake Cloner Stumbled Onto Major Stem Cell Find

Scandal overshadowed self-fertilizing eggs

(Newser) - The South Korean stem cell researcher who faked cloning a human egg and forged research results actually made a huge discovery without realizing it. Scientists reviewing his work have discovered that his team's embryonic stem cells were the product of unfertilized eggs that underwent parthenogenesis, or divided on their...

Shark Births Fatherless Baby

May 23, 2007 2:50 PM CDT

Shark Births Fatherless Baby

Female hammerheads can fertilize their own eggs, say scientists

(Newser) - Irish and American scientists, using new techniques, confirmed that a female hammerhead shark at the Henry Doorly Zoo in Nebraska gave birth to a pup in 2001— without having sex. A male tiger shark was suspected to be the father at first, but the team's genetic analysis shows no sign...