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 world's biggest beasts have always captured the imagination. But whilst being big can have its advantages, it also comes with sizeable challenges. Take the world's largest lizard, the Komodo dragon, whose huge appetite means it must take on prey ten times its weight, or the tallest animal of them all - the giraffe - who, with such a long neck, must control immense blood pressure. Nature's biggest beasts must go to extraordinary lengths to thrive. These are their epic survival stories!
Palau has set up the world's first shark sanctuary-a California-sized marine zone where hunting these endangered predators is strictly prohibited. Can this tiny island-nation defend against a sophisticated army of poachers? Join the front lines to save one of the ocean's most cherished and endangered predators.
In the high Himalaya, yak-herder Thokmay Lowa and his small group steer his herd through one of the region's extreme mountain passes. For several months of the year, In the Canadian Arctic, traditional Inuit communities still forage for much of their food. 63-year-old Minnie Nappaaluk and her granddaughter Eva embark on one of the most hazardous expeditions for food Some Natural Wonders are threatened as never before - nowhere more so than the Brazilian Amazon. In the Mato Grosso, as a result of deforestation, the region's microclimate has changed. Now fires rage out of control in the dry season.
What's appealing about a nosy tapir with an appetite for its own poop? How about a baby gelada that crawls awkwardly on its behind? The adaptations these baby animals employ may seem strange, but they're vital to their growth and survival. Join us as we cozy up to some of nature's most peculiar young ones.
In the grasslands, animals endure freezes, fires, floods, and droughts; bull elephants clash in mating battles; cheetahs and gazelles engage in a predator-and-prey dance in the Kenyan savanna; bison battle a blizzard while being pursued by wolves.