Scientists say new species of ticks carrying troubling pathogens travelling our way from the northern United States at a rate of about 50 kilometres per year, including the lone star tick which can leave a bitten person with a severe allergy to meat.

The largest gathering of snakes in the world is now underway in Manitoba — a little later than usual — as tens of thousands of garter snakes emerge from their dens in Narcisse.

Kira Egete and her family are obsessed with squirrels. Turns out, it's not such a nutty passion. Now, the Grade 10 student, whose project examines how squirrels see colour, will be among 400 participants at the Canada-Wide Science Fair in Edmonton later this month.

There are already 40 different types of ticks in Canada, with more species expected to migrate north. For The National, CBC’s Tom Murphy goes to the Canadian Tick Research and Innovation Centre (CTRIC) to find out more about the evolving risk.

Casper is currently fostering four owlets, demonstrating important skills like flying, hunting, and fearing humans.

The rare appearance of a grey whale in the waters off Vancouver has both captivated people on social media and raised concerns, after it was struck by a Sea-Doo operator on Monday.

The Nova Scotia fish stocking program takes fish, mostly brook and rainbow trout, from three provincial hatcheries, grows them for a year or two, and then releases them into lakes. But because of the 2025 drought the program is not stocking rainbow trout at all, and there will be fewer brook trout available for stocking this spring.

Biologists say there’s more to your favourite flowers than just beauty. Their different colours, petal shapes and scents are the key adaptations that help plants reproduce and survive.

A man known as the "Toronto patient" could become the first Canadian cured of HIV. Medical experts say it's a miraculous achievement even if only a small group of people are eligible for the treatment.

For snow lovers in the Maritimes, this past winter was one of the best in years. Now, Nova Scotia's Ski Martock wants to save that snow for the slopes next season. CBC meteorologist Ryan Snoddon explains.

Britain's David Attenborough, who has for decades been the world's most authoritative voice on the natural world and whose documentaries have been watched by hundreds of millions, celebrates his 100th birthday today. Here's a look back at his work over the years.

A hiker had a close call with a charging grizzly bear near the the popular hiking spot of Troll Falls in Kananaskis Country, according to a provincial warning.

Confirmation of the identities of four sailors lost on the Franklin Expedition resolves “a great debate lasting for more than a century,” researchers say.

When millions of tonnes of rock fell one kilometre into an Alaskan fiord last year, it set off one of the largest tsunamis ever recorded, a monstrous 481-metre wave higher than the tallest viewing platform of the CN Tower, a new study shows.

"I can't imagine having half my face ripped off and then going about business as usual," is how Dayna Slater expresses her admiration for a crow that has warded off capture for several weeks.

What was that in the night sky? It’s a question being asked by many residents across B.C. and parts of Alberta after an unusual sighting Tuesday night.

Palestinians living in tents amid the rubble in the Gaza Strip and aid groups trying to help them say rodent infestations have left them suffering from diseases and unsure how to cope.

Around 240,000 pieces of artifacts found at an archaeological site in Moose Jaw, Sask., are highlighting the long human history in the Wakamow Valley.

With cocaine and its metabolite, benzoylecgonine, being detected in waterways across the globe, Canadian researcher Erin McCallum and her team set out to understand the impact of these illicit drugs on fish in Sweden.

Witnesses along Vancouver’s seawall saw the collision unfold in the water near Siwash Rock in Stanley Park around 7:30 p.m. PT on Monday.