New research published in a U.S. science journal found that as the number of insects declines, tree swallows at Long Point Bird Observatory in Ontario have been producing fewer eggs and are shrinking in body size.

After a rash of drowning deaths during Europe's ongoing record-breaking heat wave, advocates are urging Canadians to stay safe this Canada Day as they push for more public swimming access across the country.

Extreme weather on Wednesday caused the cancellation of Ottawa's evening Canada Day activities, including the fireworks display, as homes flooded, roads were closed and thunderstorms led to power outages.

Dauphin's mayor says he's seen several major floods hit the western Manitoba city in his lifetime — but none as severe as this week's flooding.

An ambitious expedition will use Canadian technology to revisit two legendary polar exploration shipwrecks. The goal: create detailed digital twins of Quest and Terra Nova while leaving the historic wrecks undisturbed on the sea floor.

Record rainfall in Edmonton in June means July will remain thick with mosquitoes as wet weather triggers population boom.

When popular villains in cartoon shows and movies speak in foreign-accented English, the young children watching the conniving depictions also seem to pick up language biases, Canadian researchers say.

A vicious storm pounded Winnipeg Monday night, leaving a swath of destruction in the city's southwest that included the partial collapse of a house.

As parts of southern Ontario, Quebec and the eastern United States swelter through a heat dome, here are the health warning signs to watch out for — and how to keep cool.

When Australian goalkeeper Patrick Beach came off the turf after the first FIFA World Cup game in Vancouver, it wasn't the crowd or atmosphere that had caught his attention — it was the grass.

Five days have passed since twin earthquakes struck northern Venezuela, killing more than 1,450 people, according to the government. Relief organizations say the first 72 hours after a natural disaster is the most crucial time period for rescues, though survival can be extended if people have access to food and water.

About 1,113 light years away from Earth, locked in orbit around a single star, there are two planets that appear to be the size of Jupiter, but have the density of "a nice blob of shaving foam, fresh from the can."

Severe thunderstorms on Sunday swept through beleaguered western Manitoba — still recovering from storms earlier this month — bringing at least one tornado that a storm chaser called a "monster."

In the latest issue of the Canadian Medical Association Journal, infectious disease physicians described the case of an 11-year-old child who died of rabies almost two years ago, and urged people to seek medical attention if they have any contact with bats to prevent potential rabies infection.

The last time Kenny Chaplin broke the Guinness World Record for most trees planted in 24 hours, the year was 2001 and he was a much younger man. He's doing it all again in 2026 at the village of Buena Vista, Sask.

Research out of the Great Lakes Forestry Centre in Sault Ste. Marie, Ont., is raising new concerns about an invasive insect that has been steadily moving closer to the Canadian border.

As crews continue to search through the rubble for potential survivors, many Venezuelans expressed anger at their government for its lack of disaster preparedness after years of political corruption.

A facility near Cobalt, Ont., has been tapped to be the home of North America's first battery-grade cobalt refinery. Projected to be fully operational by late 2027, the plant will import and process mined cobalt — experts say it could bring Canada into an industry dominated by China.

A recently discovered spider species in Australia’s tropical rainforests has stunned researchers with a hunting technique that launches prey through the air using a spring-loaded silk trap.

NASA and the commercial company Katalyst Space have concocted a plan to stop a powerful astrophysics satellite from hurtling towards Earth and burning up in the atmosphere.