Yes, some animals can have babies without a mate. Here’s how

Advertisement

Advertise with us

A boa constrictor in the U.K. gave birth to 14 babies — without a mate.

Read this article for free:


or

Already have an account? Log in here »

To continue reading, please subscribe:

Subscribe and receive a limited-edition Free Press branded hat or tote.

Digital Subscription

One year of digital access for only $205*

  • Enjoy unlimited reading on winnipegfreepress.com
  • Read the E-Edition, our digital replica newspaper
  • Access News Break, our award-winning app
  • Play interactive puzzles

*First annual payment billed as $205.00 + GST for one year. This annual subscription will automatically renew at $233.00 + GST every 52 weeks (10% off the regular annual price of $259.35). Offer available to new and qualified returning subscribers only. Cancel any time.

To continue reading, please subscribe:

Add Free Press access to your Brandon Sun subscription for only an additional

$1 for the first 4 weeks*

  • Enjoy unlimited reading on winnipegfreepress.com
  • Read the E-Edition, our digital replica newspaper
  • Access News Break, our award-winning app
  • Play interactive puzzles
Start now

*Your next Brandon Sun subscription payment will increase by $1.00 and you will be charged $17.95 plus GST for four weeks. After four weeks, your payment will increase to $24.95 plus GST every four weeks.

Hey there, time traveller!
This article was published 03/07/2024 (773 days ago), so information in it may no longer be current.

A boa constrictor in the U.K. gave birth to 14 babies — without a mate.

Is it a miracle? The result of a secret rendezvous? Probably not. Females of species have the ability to reproduce asexually, without sperm from a male. The process is called parthenogenesis, from the Greek words for “virgin” and “birth.”

Some plants and insects can do it, as well as some amphibians, reptiles, birds and fish. A stingray named Charlotte that was thought to have become pregnant by this method died this week at an aquarium in North Carolina, though she never delivered and it is unclear if she was ever pregnant.

FILE - Flora the Komodo dragon walks around her enclosure at Chester Zoo in Chester, England, Monday Dec. 18, 2006. Flora's virginal conception, and that of another Komodo dragon earlier in the year at the London Zoo, are the first time it had been documented in Komodo dragons. (AP Photo/Dave Thompson, File)
FILE - Flora the Komodo dragon walks around her enclosure at Chester Zoo in Chester, England, Monday Dec. 18, 2006. Flora's virginal conception, and that of another Komodo dragon earlier in the year at the London Zoo, are the first time it had been documented in Komodo dragons. (AP Photo/Dave Thompson, File)

Some wasps, crustaceans and lizards reproduce only through parthenogenesis. But in other species it’s rare and usually only observed in captivity. Scientists have a good idea how it happens, though they aren’t clear why it happens, according to Kady Lyons, a research scientist at the Georgia Aquarium in Atlanta.

A female’s egg fuses with another cell, often a cell leftover from a process that allows the female to create the egg. That cell, known as a polar body, gives the egg the genetic information it would normally get from sperm. The cell starts dividing and that leads to the creation of an embryo.

The snake, a 6-foot, 13-year-old Brazilian Rainbow Boa named Ronaldo, gave birth last week after having no contact with any other snakes for at least nine years, according to the City of Portsmouth College, which kept the snake.

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

Report Error Submit a Tip

More Stories

Unsafe conditions force Sea Bears, Honey Badgers into winner-take-all CEBL final in Winnipeg Saturday

Joshua Frey-Sam 4 minute read Preview

Unsafe conditions force Sea Bears, Honey Badgers into winner-take-all CEBL final in Winnipeg Saturday

Joshua Frey-Sam 4 minute read Updated: Yesterday at 2:49 PM CDT

BRAMPTON — The Canadian Elite Basketball League’s new Finals format lasted one minute and 46 seconds.

And it’s possible even that was too long.

What was supposed to be a historic best-of-three series between the Winnipeg Sea Bears and the Brampton Honey Badgers will now return to the league’s previous format of a single-game elimination. Wednesday’s Game 1 at the CAA Centre in Southern Ontario was cancelled shortly after tip-off due to condensation on the court, which made the playing surface unsafe for competition.

The championship will flip to the Manitoba capital for a single, winner-take-all contest at Canada Life Centre on Saturday (2:30 p.m.).

Read
Updated: Yesterday at 2:49 PM CDT

Moving rail lines outside city would make Winnipeg ‘major transportation hub’

Carol Sanders 6 minute read Preview

Moving rail lines outside city would make Winnipeg ‘major transportation hub’

Carol Sanders 6 minute read Wednesday, Aug. 12, 2026

After decades of calls to move rail traffic to the outskirts of Winnipeg, a plan that would benefit residents, railways and taxpayers is now on track, says the former Winnipegger leading the way.

A rail line bypass south of the city, using Crown-owned land and the Manitoba Hydro corridor, would take 20 years to complete, remove 120 railway crossings that are a safety risk and free up about 250 acres of Winnipeg land over time for development, Lloyd Axworthy said Wednesday.

“The visions that we have have to be implemented,” Axworthy said at a news conference announcing the launch of a 90-day feasibility study to move freight rail traffic out of Winnipeg’s urban core along Manitoba Hydro’s southern transmission corridor, connecting east to west along the Perimeter Highway.

The former federal transport minister and Manitoba MP was tasked by Premier Wab Kinew in October 2024 to lead a two-year rail relocation feasibility study.

Read
Wednesday, Aug. 12, 2026

It’s one thing to climb aboard rail-relocation train, quite another to pay for the ride

Dan Lett 5 minute read Preview

It’s one thing to climb aboard rail-relocation train, quite another to pay for the ride

Dan Lett 5 minute read Wednesday, Aug. 12, 2026

Anyone who wants a brighter, safer, healthier future for the city of Winnipeg should really want the renewed hopes of rail relocation to finally become reality. And the sooner, the better.

Premier Wab Kinew announced Wednesday the province was going to forge a plan to relocate the Canadian Pacific Kansas City central yards and many of other the lines that run through Winnipeg to a bypass that runs around the city.

This “plan to design a plan” strategy was devised by a task force headed up by former federal MP and cabinet minister Lloyd Axworthy, who in 2024 was given a two-year mandate to find the best way to rid the city of some or all of its rail infrastructure.

For the record, Kinew and Axworthy said a relocation would likely take 20 years to complete, which makes this week’s announcement an important statement of intent, but little more. The sobering reality is that this promising idea has been proposed by political leaders, and then abandoned, for decades.

Read
Wednesday, Aug. 12, 2026

Yes, some animals can have babies without a mate. Here’s how

The Associated Press 2 minute read Preview

Yes, some animals can have babies without a mate. Here’s how

The Associated Press 2 minute read Wednesday, Jul. 3, 2024

A boa constrictor in the U.K. gave birth to 14 babies — without a mate.

Is it a miracle? The result of a secret rendezvous? Probably not. Females of species have the ability to reproduce asexually, without sperm from a male. The process is called parthenogenesis, from the Greek words for “virgin” and “birth.”

Some plants and insects can do it, as well as some amphibians, reptiles, birds and fish. A stingray named Charlotte that was thought to have become pregnant by this method died this week at an aquarium in North Carolina, though she never delivered and it is unclear if she was ever pregnant.

Some wasps, crustaceans and lizards reproduce only through parthenogenesis. But in other species it's rare and usually only observed in captivity. Scientists have a good idea how it happens, though they aren't clear why it happens, according to Kady Lyons, a research scientist at the Georgia Aquarium in Atlanta.

Read
Wednesday, Jul. 3, 2024

Icy relationship with U.S. beginning to thaw at border, data shows; American visits to Manitoba hit five-year high

Nicole Buffie 5 minute read Preview

Icy relationship with U.S. beginning to thaw at border, data shows; American visits to Manitoba hit five-year high

Nicole Buffie 5 minute read Yesterday at 5:32 PM CDT

As Canadians begin to lower their elbows and start to cross the U.S. border again, Americans are coming to Manitoba in numbers not seen in years.

Read
Yesterday at 5:32 PM CDT

Strike mandate for Dynacare workers

Free Press staff 2 minute read Preview

Strike mandate for Dynacare workers

Free Press staff 2 minute read Yesterday at 2:01 PM CDT

Nearly 350 laboratory technicians and technologists at Dynacare’s 22 laboratory and health services centres in Manitoba have voted in favour of a strike.

The Manitoba Association of Health Care Professionals, which represents the employees, said in a news release that 99 per cent of members who voted supported going on strike. A strike notice has not been served to the employer. If and when that occurs, the union is required to give two weeks’ notice.

The collective agreement between the union and Dynacare ended March 31. Negotiations between the parties began in February and they have been in mediation since July 15. They’ve been unable to reach a tentative agreement through mediation, and there are no further bargaining or mediation dates scheduled, the union said in a news release.

Dynacare became Manitoba’s only private outpatient provider for laboratory services in 2017, after purchasing competitor Unicity Labs. The union said Manitoba government records show Dynacare members completed more than 15 million laboratory tests in the 2024-25 fiscal year.

Read
Yesterday at 2:01 PM CDT