Britain's road network might seem like an unlikely starting point to look for wild things but in the last 50 years the roadsides have become our latest nature reserve.
Chris, Lottie, Trevor and Sally explore Birmingham's hard shoulders and soft verges, and discover how Danish scurvy-grass has become the fastest moving plant in Britain, using a fast car, a slow-motion camera and polystyrene balls.
They also reveal how a very familiar British flower has come under threat from a roadside imposter, and they find the world's smallest 'bear' living in the last place imaginable.
Comments