2/2 Liz Bonnin uncovers the weird and wonderful ways that different species attract a mate.
1/6 Paul Murton explores the wilds of Loch Etive.
9/11 Darryl Grimason swims with sharks in his exploration of the coastline.
4/4 On his last wild urban tour, Iolo Williams finds spiders, red squirrels and an angry bird.
18/23 Alice Roberts learns the science behind the hovercraft, as well as how to fly one.
2/2 Cameron McNeish completes his journey up the western seaboard.
4/4 In autumn, Iolo finds himself in the midst of a flock of fieldfares arriving from Europe.
1/7 This opening episode reveals the extraordinary strategies used by both predators and prey.
1/3 In Africa's savannah, a baby elephant shrew fights for life.
2/4 Professor Brian Cox follows the Earth's epic journey through space.