Background Articles

Atlantic salmon laid a record number of eggs in a Maine river last year, according to a conservation group that tracks the animal's status in the wild.

Reduced to just 6,500 animals in 1995, the Fortymile caribou herd in Yukon has seen a remarkable comeback, now numbering around 84,000.

Hunters say grizzly bears are showing up in growing numbers on islands of the Beaufort Sea.

The fast-warming Sea of Okhotsk, wedged between Russia and Japan, is a cautionary tale of the far-reaching consequences when climate dominoes begin to fall.

In just a few years, 8 million native angasi oyster hatchlings have been placed in the waters off Victoria, South Australia, Queensland and Western Australia, on the recycled mollusc shells collected from restaurants. They've turned empty, sandy seabeds into thriving ecosystems.

Similar to what has happened in B.C., tens of millions of voracious purple sea urchins have chomped their way through towering underwater kelp forests in California.

More porcupine sightings have been reported in Yellowknife this year compared to previous years. What should you do if your furry friend meets a porcupine?

The number of moon jellyfish in Alaska waters has increased. Warm ocean temperatures and plentiful food in the form of zooplankton have contributed to the increased sightings

Out of the eight species of bats in the Northwest Territories, residents are most likely to see the little brown bats.

One theory is the pinks were traveling somewhere else to spawn, and taking a longer than usual route to avoid warming water.

Somewhere between the size of a sewer rat and a beaver, with a tail resembling that of an opossum and protruding, nacho cheese-colored teeth, the nutria is both impressively unattractive and highly destructive.

From California to Alaska, animals born during the infamous Blob are coming of age.

Grizzly bears sightings are on the rise on Vancouver Island, and experts have a few theories as to why this is happening.

Mexico has spent US$17 million to remove over a half-million tons of sargassum seaweed from its Caribbean beaches, and the problem doesn't seem likely to end any time soon.

The glowing algae is suffocating sea life.

Environmentalists often decry the loss of species diversity in rivers that have been dammed. But while some species lose when we meddle with rivers, others win, sometimes in dramatic and ways.

From African waters to China and back again, over half the fish on Nigerian tables is imported

Sargassum is infesting Mexico’s coastline. Researchers are scrambling to stop an ecological crisis, and maybe even make something good of it.

'There's nothing good about them.' They carry disease and cause billions in damage

The 2015 to 2016 El Niño event brought weather conditions that triggered regional disease outbreaks throughout the world.