Why drivers in Eastern Canada could see big gas price spikes, and other Canadians won't
Drivers in Eastern Canada face a big increase in gas prices because of various factors, especially the higher cost of the summer blend, industry analysts say.
Scientists have documented the first-known instance of a "virgin birth" by a crocodile, which had been living in isolation for 16 years at Costa Rican zoo, according to a study published Wednesday.
The female American crocodile laid 14 eggs in 2018 within her enclosure, a not uncommon phenomenon among captive reptiles. The more puzzling fact, however, came after three months of incubation when one egg was found to contain a fully formed stillborn baby crocodile.
According to the study published in the journal Biology Letters, scientists tested the crocodile fetus' genetic makeup. They found DNA sequences showing it was a result of facultative parthenogenesis (FP), or reproduction without the genetic contribution of males.
The phenomenon of FP, which some scientists have referred to by the shorthand of "virgin birth," has also been documented in other species of fish, birds, lizards and snakes. The scientists said this is the first-known example in a crocodile.
In FP, a female's egg cell can develop into a baby without being fertilized by a male's sperm cell.
In making an egg cell, a precursor cell divides into four cells: one becomes the egg cell and retains key cellular structures and the gel-like cytoplasm, while the others hold extra genetic material.
Then, one of those cells essentially acts as a sperm cell and fuses with the egg to become "fertilized."
The American crocodile is considered vulnerable and at risk of extinction in the wild. According to one hypothesis, FP may be more common among species on the verge of extinction, the study said.
The scientists said the Costa Rica "virgin birth" could lead to new information about crocodile ancestors that walked the earth in the Triassic Period some 250 million years ago.
"This discovery offers tantalizing insights into the possible reproductive capabilities of the extinct archosaurian relatives of crocodilians and birds, notably members of Pterosauria and Dinosauria," the study said.
Reporting by Cassandra Garrison; Editing by David Gregorio
Drivers in Eastern Canada face a big increase in gas prices because of various factors, especially the higher cost of the summer blend, industry analysts say.
The journey to home ownership can be exciting, but personal finance columnist Christopher Liew warns about the trappings of becoming 'house poor' -- where an overwhelming portion of your income is devoured by housing costs. Liew offers some practical strategies to maintain better financial health while owning a home.
As the United States sets its first national limits on toxic forever chemicals in drinking water, researchers say Canada is lagging when it comes to regulations.
A Winnipeg woman was sentenced to house arrest after a single date with a man she met online culminated in her harassing him for years, and spurred false allegations which resulted in the innocent man being arrested three times.
Almost 7,000 bars of pure gold were stolen from Pearson International Airport exactly one year ago during an elaborate heist, but so far only a tiny fraction of that stolen loot has been found.
Calgary police have arrested a man and a charge is pending in connection with the death of a toddler in 2022.
New archeological investigations in Guatemala reveal that the ancient Maya people had a ritual of burning royal human remains as a public display of political regime change.
It took years for Vinnie Deluca to collect more than 400 cards worth of free McDonald's McCafe coffee, a collection that now has "zero value" after the company discontinued the program.
Prince William will return to public duties on Thursday for the first time since his wife Kate revealed she was undergoing preventative chemotherapy for cancer.
When Les Robertson was walking home from the gym in North Vancouver's Lower Lonsdale neighbourhood three weeks ago, he did a double take. Standing near a burrow it had dug in a vacant lot near East 1st Street and St. Georges Avenue was a yellow-bellied marmot.
A moulting seal who was relocated after drawing daily crowds of onlookers in Greater Victoria has made a surprise return, after what officials described as an 'astonishing' six-day journey.
Just steps from Parliament Hill is a barber shop that for the last 100 years has catered to everyone from prime ministers to tourists.
A high score on a Foo Fighters pinball machine has Edmonton player Dave Formenti on a high.
A compound used to treat sour gas that's been linked to fertility issues in cattle has been found throughout groundwater in the Prairies, according to a new study.
While many people choose to keep their medical appointments private, four longtime friends decided to undergo vasectomies as a group in B.C.'s Lower Mainland.
A popular highway in Alberta's Banff National Park now has a 'no stopping zone' to help protect two bears.
B.C. resident Robert Conrad spent thousands of hours on Crown land developing an unusual bond with deer.
A Sudbury woman said her husband was bringing the recycling out to the curb Wednesday night when he had to make a 'mad dash' inside after seeing a bear.