Cameraman Gordon Buchanan goes on the trail of the elusive wild wolf, which is returning in droves to North America. Few other animals inspire such hatred and passion.
The elusive wild wolf is returning in droves to North America.
Photos of Gordon Buchanan's struggle to find and film the elusive wolf.
Sir David Attenborough's Wild Canada comes to Eden!
The largest natural history survey of Canada ever seen on television.
How well do you know Nigel Marven's quarry; the grey whale?
Nigel Marven sets out on another adventure, this time focusing on grey whales.
Up and down the coastline, Nigel Marven meets whale-watchers, scientists and researchers.
Exploring the North American wildlife of Yellowstone National Park.
See the best the USA has to offer with these pictures celebrating the land of the free.