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Rare footage of a sperm whale giving birth has offered scientists a window into the behaviour of these large, elusive mammals.

The astronaut who prompted NASA's first medical evacuation earlier this year said Friday that doctors still don't know why he suddenly fell sick at the International Space Station.

Amid Prime Minister Mark Carney's calls that the Canada-U.S. relationship is ruptured, Ottawa has committed $175-million to a mining project in northern Quebec whose major U.S. investor is closely linked to the Trump administration.

Angelika Langen, co-founder of the Northern Lights Wildlife Society, tells The National about the moment her shelter rescued an abandoned bear cub near Kamloops, B.C.

In this issue of our environmental newsletter, we get the latest scientific estimate of how many birds cats kill each year; check out the forecast for this year's El Niño; and find out what's in the e-waste Canadians throw out (hint: a lot of good . ...

Alexander Bentley, a herpetologist, is unfazed by cordyceps' presence in the Amazon. But after a finger poke of a fungi-covered mass showed movement, Bentley soon realized that one spider had a couple of tricks up its eight sleeves.

Migratory species such as the snowy owl, hammerhead shark and others are being considered for additional protections at global talks in Brazil. Here's what is endangering them and what is being proposed to help.

Biruté Mary Galdikas, a Canadian scientist who dedicated her life to the study and conservation of orangutans, has died. She was the last living member of the renowned primatologists known as "trimates," alongside Jane Goodall and Diane Fossey.

Parks Canada has announced restrictions on paddling in some rivers and lakes in Alberta to prevent the spread of aquatic invasive species. Some paddlers are voicing concerns with the new policy, but urge their community to comply.

Three Nova Scotian geoscientists have returned from a month-long expedition to Antarctica and now hope to inspire other women to enter their field of work.