The final episode of this wonderful series looking at wildlife in the Highlands of Scotland examines humans’ relationship with the region’s animals.

From the dedicated park rangers detailing the lives of ospreys in the Trossachs to the guardians of roving reindeer in the Cairngorms, conservationists protecting the wildcat gene pool and campaigners hoping to introduce more lynx and bears, we meet the animal lovers tasked with protecting and propagating their wild neighbours.