This week, Mike Gunton talks to the filmmakers that have lived in extreme locations for weeks at a time to capture the amazing animal sequences we love. Planet Earth II Producer Emma Napper describes her time camping alongside creepy-crawlies while filming in the Brazilian rainforest, while Alex Walters recalls her time on the isolated Ellesmere Island, filming wolves for Planet Earth III, and some of the close calls that come with living so close to wild predators. Sir David Attenborough remembers his own experiences on location, from the camaraderie in camp, to the frustration at trying to spot and film animals that don’t want to be seen.