This instalment examines the earliest land vegetation and insects. The first plants, being devoid of stems, mainly comprised mosses and liverworts. Using both sexual and asexual methods of reproduction, they proliferated. Descended from segmented sea creatures, millipedes were among the first to take advantage of such a habitat and were quickly followed by other species. Without water to carry eggs, bodily contact between the sexes was now necessary. This was problematical for some hunters, such as spiders and scorpions, who developed courtship rituals to ensure that the female didn't eat the male.
Explore a corner of Namibia dominated by stifling heat and parched sand, where a desolate landscape of haunting beauty lies. While most of Etosha National Park is devoid of growth, its margins are dotted with a series of oases that attract herds of thirsty creatures: antelopes, exotic birds, and the world's biggest elephants.
At more than 1,200 miles, the Orange River is the longest in South Africa. Join as we trace its westward journey, bringing to its shores a diverse sample of African wildlife, large and small. From powerful swimming birds like the African darter, to flat lizards who inhabit the granite rocks of the mighty Augrabies Falls, it's the journey of life-bringing water passing through some of the continent's most diverse and dramatic landscapes.