The largest natural history survey of Canada ever seen on television.
Up and down the coastline, Nigel Marven meets whale-watchers, scientists and researchers.
See the best the USA has to offer with these pictures celebrating the land of the free.
Incredible images from one of the most sparsely populated countries on the planet.
Exploring the park’s incredibly diverse wildlife population and geology.
Photos of Gordon Buchanan's struggle to find and film the elusive wolf.
Images from the North American episode of Earthflight.