Approaching the end of their first year on Earth, the animal babies take on the most complex challenges of their lives. A mountain gorilla infant learns the co-ordination to roam free in the forest.
For most of the Earth's history, life consisted of the simplest organisms; but then something happened that would give rise to staggering diversity, and, ultimately, life as complex as that which we see today. Scientists are still struggling to figure out just what that was.
This episode reveals how mammals developed from tiny nocturnal forest dwellers to the dominant form of life on the planet following the death of the dinosaurs. David explains how the meteoric rise of mammals led to an astounding diversity of life and laid the foundations for the ascent of man.
At the height of the Zambian dry season, three lionesses in the Nsefu pride are pregnant. Even with protection from fellow lions, the stakes couldn't be higher, from cub-hungry predators like leopards and hyenas to the hunting duties necessary to sustain the group. Can the pride meet the demands of their growing population?
An expedition which will help viewers decipher Antarctica's key role in climate regulation and see the challenges the iconic Emperor penguin faces in the light of climate change. Discover the secrets of these polar environments on the ice and underwater and get close and personal with the emperor.