'It flew right over Alaska and it landed just west of Herschel Island, at Qikiqtaruk [Territorial Park], along the coast along the Yukon's North Slope,' Cameron Eckert, a conservation biologist with Yukon Parks and a bird enthusiast, said of the bar-tailed godwit.

Climate change is causing trouble on Herschel Island.

The image above shows curious holes in Arctic sea ice, located about 50 miles northwest of Canada’s Mackenzie River Delta. Guesses from readers included everything from ice broken by marine animals to breathe, to ice that had been thawed by methane hydrates. It’s a challenge to know the source of the features based on a photograph or satellite image alone, but several scientists offered their hypotheses in our April 21 Image of the Day.

Tom Jung and Dave Mossop were monitoring falcons on Yukon's Arctic coastal plain when they spotted a beaver dam, made of shrubs. 'This was a bit of a unique observation.'

Canadian researchers learned that local Inuvialuit hunters had spotted beavers in the region in 2008 and 2009. Those sightings are the first documented signs of North American beaver occupancy on the Beaufort coastal plain.

Herschel Island has seen a lot of people come and go. The Inuvialuit have used the place, known as Qikiqtaruk in Inuvialuktun, for at least 1,000 years.

Darren Nasogaluak has an unusual problem.As the mayor of Tuktoyaktuk, a small Inuvialuit hamlet on the coast of the Beaufort Sea, he has had to watch bits of his community wash away over the years.