In Tokyo, there are unapproachable "lost islands" with unspoiled environs and rich wildlife. Minami Iwo-to, part of the Ogasawara island chain, is about 1,300km from the Japanese capital. Normally, entry is banned to protect the environment. An exception was made in 2017 for the first comprehensive scientific survey in 10 years. The island compresses multiple climate zones into a small area, offering researchers a rare opportunity to view evolution in action. Braving an arduous climb and a swarm of seabirds, the team discovers one new species after another.
The Okavango Delta is one of the world's largest inland deltas - and supports a variety of life as rich as any you will see in Africa. Yet this lush wetland of islands and lagoons lies in the middle of the vast, featureless Kalahari Desert. This is the story of how it happens. Following groups of wildlife, including hippos, baboons, catfish, kingfishers, leopards, warthogs and elephants, the film reveals how the yearly flood transforms the landscape and impacts their lives. But more surprisingly, it reveals how, with the help of termites and hippos, the flood actually creates this extraordinary delta in the first place.
David Attenborough narrates the story of Rodrigo Medellin. Since he first kept vampire bats in his bathroom as a child, Rodrigo has dedicated his life to saving them. Now Mexico's most famous export, tequila, is at stake. Rodrigo's beloved lesser long-nosed bat is crucial to the liquor - pollinating the plants the drink is made from. To save both, Rodrigo must track the bats' epic migration across Mexico - braving hurricanes, snakes, Mayan tombs and seas of cockroaches. The threats are very real for not only Rodrigo and the bats, but also for anyone with a taste for tequila.