At the end of an action-packed week, Chris Packham and Michaela Strachan report live on wildlife stories from the Scottish Highlands, and look ahead to the challenges that winter will bring for our animal characters. Martin Hughes-Games finds out why autumn is such a critical time for one of the nation's favourite mammals, the hedgehog. And as the red deer rut reaches its climax, it is time to find out which stag has battled his way to the top.
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