1 online resource (streaming video file) (54 min. 19 sec.) ; 327630019 bytes
Summary
Naturalist Chris Packham investigates the ecosystem of North America's temperate forests, examining how it rebuilds itself in spring after harsh winters. He also reveals how the prey of the Canada lynx is dependent on a caterpillar that lives high up in the canopy, and discovers why the large trees of the north-west of the continent are reliant on bears and salmon. (From the UK) (Documentary Series) (Part 3 of 4) G CC
