"A Pelt for a Skin" — The motto of the Hudson Bay Company that monopolised much of the fur trade in New France, by stirring up conflicts between settlers and natives. New Barkskins Tuesdays at 9pm on National Geographic. | National Geographic UK

Explore one of Canada’s most intriguing natural features—Hudson’s Bay. This vast inland sea isn’t just a geographical marvel; it’s also home to a mysterious gravity anomaly that has puzzled scientists for decades. The region exhibits one of the lowest gravitational pulls on Earth, partly due to the retreat of glaciers from the last Ice Age and the slow rebound of the Earth’s crust. But Hudson’s Bay is more than a scientific curiosity—its diverse ecosystems support a rich array of wildlife, from