'No one had ever heard of it': Woman dies from rare tick-borne virus.

These ticks may have been an example of one native species in Alaska.

More polar bears on land have been encountering more people in the Arctic, a perfect storm of dangerous conditions, one scientist says.

The state Department of Health announced Wednesday that a Saratoga County resident died in recent months after contracting a rare tick-borne illness known as Powassan Virus.

A major wildlife rehabilitation facility is bracing for the devastating impact of the B.C. wildfires on birds and mammals.

Conservation officers believe the same bear was involved in two recent encounters. The most recent involved a motorcyclist forced to back up by the approaching bear.

Community members in Paulatuk, N.W.T., captured rare images this week of two moose wading in the Arctic Ocean.

Two people were found to have plague this week. What does the disease look like in the modern world, and why does it keep happening in New Mexico?

Across a growing swath of North America, these animals are dying from a mysterious disorder called chronic wasting disease. It’s caused not by a virus or bacterium, but a deformed protein called a prion.

Chronic wasting disease long thought not to affect human health.

Is climate change reducing the quantity and quality of Alaska's Dall sheep habitat? That's the hypothesis being tested by two researchers.

Spotted a rat at the Kodiak Airport while doing intertidal surveys.

Experts say brown or grizzly bears attack and kill people far more often in Alaska than black bears. Authorities say black bears killed a 16-year-old runner at Bird Ridge over the weekend and a Pogo Mine contractor Monday.

Black bears typically stay near the treeline — but what was this guy doing so far up North, away from it?

The 400-pound young boar attacked the 6-month-old puppy Wednesday morning, according to troopers and state biologists.

It appears ticks have made their way to Yellowknife - one of the blood-thirsty bugs was plucked off a dog over the weekend.

Richard Gruben was planning to hunt wild geese near Tuktoyaktuk, N.W.T. Instead, the Inuvialuit hunter ended up harvesting an iconic rodent — his first ever.

No one in Chuathbaluk has ever seen Musk-ox this far inland before.

“We really don’t know when the problem started and whether it was a long-term situation this winter, but the bottom line is that it appears that salmonberry and blueberry were affected by the amount of cold and the depth of cold that we had that killed the winter buds and killed the above-ground stems of those plants,” Pyle said.