Travel writers and photographers Arlene and Robin Karpan took the stunning image of the Athabasca Sand Dunes features on a Canada Post stamp.

The Athabasca Sand Dunes is the latest must-see place to be featured on the Canadian stamp.

The increasing frequency of wildfires in Canada's boreal forest may be permanently changing one of the largest intact ecosystems left on Earth, research suggests.

Freshwater mussels range from about the size of a large button to the size of a billfold, but the work they do for ecosystems is enormous.

Saint John is one of six ports across Canada where data has been collected as part of a national program since 2017.

The survey started in 1971 as a review of commercially important fish like cod and halibut, but has grown into an annual scientific assessment of all sea life hauled up from the deep.

Four seasoned open water swimmers will take on 10 routes in Lake Erie to raise awareness about pollutants threatening the ecosystem.

The money will be spread out over five years and much of the research will be conducted by graduates and undergraduates from Acadia University in Nova Scotia.

Eric Oliver of Dalhousie University in Halifax, who led the research, says it found that annual marine heatwave days have increased by 54 per cent from 1925 to 2016.

Scientists say the iceberg that broke away is four times the size of London, U.K.