Nature's Miniature Miracles (S36E04)

This film tells the epic survival stories of the world's smallest animals. It really is a big bad world out there. So what happens if you are the little guy? To make a living, these tiny heroes have evolved extraordinary skills and achieved mind-boggling feats. From the animal kingdom's greatest artist to the tiny creatures that provide so much of the air we breathe, this programme discovers what it takes to be a miniature miracle. (BBC)