The final episode deals with the evolution of the most widespread and dominant species on Earth: humans. The story begins in Africa, where, some 10 million years ago, apes descended from the trees and ventured out into the open grasslands in search of food. They slowly adapted to the habitat and grew in size. Their acute sense of vision led to them standing erect to spot predators, leaving their hands free to bear weapons. In addition, the primitive apemen also had stones that were chipped into cutting tools. Slowly, they grew taller and more upright, and their stone implements became ever more elaborate.
David Attenborough reveals that the animal inhabitants of this vast wilderness are every bit as extraordinary as they are bizarre. Unearthly calls of the notorious Tasmanian devil echo through the land, but following them over the course of a year reveals a surprisingly gentle side. In the dry east, rare white wallabies graze on the plains and jack jumper ants build huge nests – these venomous ants are amongst the most dangerous on earth. In the west, where it can rain nearly every day of the year, caves light up with the magical spectacle of thousands of glow-worms, and the trees are 100-metre towering monsters. Rivers are home to the peculiar platypus, and world’s largest freshwater invertebrate, the Tasmanian giant lobster. Miniature penguins come ashore to breed, and as winter approaches, the southern lights dance in the sky. Tasmania’s isolation and unique climate has created a world that is as weird as it is wonderful.
Venture into the heart of Namibia, where some parts of the landscape receive less than an inch of rain each year. Yet, despite its arid nature, the southern drylands exude a desolate beauty thanks in part to the massive sand dunes--the largest in the world--that dominate its Atlantic coastline.
From mountain zebras to shy and secretive caracals, Karoo National Park showcases a diversity of creatures who have adapted to demanding environmental conditions. Scale the varying altitudes of this nature reserve's vast landscape.
World-leading dinosaur expert Susie Maidment is in the museum basement trying to piece together the skeleton of the first Tyrannosaurus rex ever discovered. It's a priceless specimen but somehow the bones have got muddled up with another dinosaur and it's up to Susie to work out if any of the bits are missing. The experts inspect Guy the gorilla, who was a London Zoo favourite for decades and now sits fully preserved in his own glass case, and the museum launches an ambitious project to capture a sample of every living bug in the UK today.