Sky Nature Wednesday

Stories of why African animals have evolved the way they have, revealing why a zebra has stripes and the reason for a giraffe's long neck

Wildlife vet John Lewis provides a health check for stump-tailed macaques who have recently arrived from Scotland, but discovers they have serious dental problems

Animal director Jeremy tries to coax overweight orangutan Oshine to the outdoor enclosure, while chimp Lulu refuses to take her medicine

Chile's Atacama Desert, which stretches for 600 miles and is the world's driest non-polar region. From menacing volcanoes to resplendent flamingos, it is truly unique

In South Africa, a young rescued rhino called Esme has found heartwarming help from a playful dog called David and her sheep companion Melie

May brings violent tornados to North America and the life-giving monsoon to India. The dry season ends in southern Africa, claiming victims among elephants

The ER team tends to a flood of patients as vet Phil stabilises an ailing joey. Meanwhile, senior vet Tim treats a scratched bandicoot

The Nomads and Townies squat in Marina Bay while Anna and the Bay Family are away upriver

Wildlife vet John Lewis provides a health check for stump-tailed macaques who have recently arrived from Scotland, but discovers they have serious dental problems

Animal director Jeremy tries to coax overweight orangutan Oshine to the outdoor enclosure, while chimp Lulu refuses to take her medicine

Chile's Atacama Desert, which stretches for 600 miles and is the world's driest non-polar region. From menacing volcanoes to resplendent flamingos, it is truly unique

In South Africa, a young rescued rhino called Esme has found heartwarming help from a playful dog called David and her sheep companion Melie

May brings violent tornados to North America and the life-giving monsoon to India. The dry season ends in southern Africa, claiming victims among elephants

Following animals as they build families and take care of their little ones and comparing their relationships to those in humans

The Nomads and Townies squat in Marina Bay while Anna and the Bay Family are away upriver

Wildlife vet John Lewis provides a health check for stump-tailed macaques who have recently arrived from Scotland, but discovers they have serious dental problems

Animal director Jeremy tries to coax overweight orangutan Oshine to the outdoor enclosure, while chimp Lulu refuses to take her medicine

Volcanologist Tom Pfeiffer takes a group to Ertea Ale. However, they first need to cross Ethiopia's Danakil Depression - one of the planet's most inhospitable places

Volcanologist Tom Pfeiffer heads to Indonesia to see if Anak, a son of legendary volcano Krakatoa, is ready to repeat the pattern of its ancestor

The northern team attach an activity tag to a bull shark, before diving 80 metres deep to put a satellite tracker on a great white

The Nomads and Townies squat in Marina Bay while Anna and the Bay Family are away upriver

Following animals as they build families and take care of their little ones and comparing their relationships to those in humans

The ER team tends to a flood of patients as vet Phil stabilises an ailing joey. Meanwhile, senior vet Tim treats a scratched bandicoot

The Mackenzie Delta is the second largest in North America. Here, strange and mysterious landforms tell a story of an ever-changing Arctic

Volcanologist Tom Pfeiffer takes a group to Ertea Ale. However, they first need to cross Ethiopia's Danakil Depression - one of the planet's most inhospitable places

Volcanologist Tom Pfeiffer heads to Indonesia to see if Anak, a son of legendary volcano Krakatoa, is ready to repeat the pattern of its ancestor

The northern team attach an activity tag to a bull shark, before diving 80 metres deep to put a satellite tracker on a great white

Chile's Atacama Desert, which stretches for 600 miles and is the world's driest non-polar region. From menacing volcanoes to resplendent flamingos, it is truly unique

In South Africa, a young rescued rhino called Esme has found heartwarming help from a playful dog called David and her sheep companion Melie