A look at what would cause a ferocious tiger shark to cuddle up with a diver and why pigs are swimming in the Caribbean; and what mysterious blobs have washed up by the thousands on the shores of Oregon.
Every year, the pipistrelle bat undertakes a mysterious migration. This discreet journey covers thousands of kilometers and triggers puzzles that scientists are still trying to understand today. Thanks to cutting-edge technology, we will track the bats on their journey.
Professor David Scheel takes an octopus into his home to learn about its intelligence and the extraordinary relationship he and his daughter develop with the creature. Named Heidi, the octopus is seen unravelling puzzles, recognising individual humans and even watching TV with the family. The film also looks at the remarkable behaviour of other octopuses around the world, from those that can change their colour and texture in a split second to the octopus that carries around its own coconut shell to hide in.
The first episode tells how invertebrates became the first creatures of any kind to colonise dry land. Their forerunners were shelled and segmented sea creatures that existed 400 million years ago. Some of them ventured out of the water to lay their eggs in safety, and Attenborough compares those first steps with today's mass spawning of horseshoe crabs off the Atlantic coast of North America.
Two North American species have nearly vanished from their natural habitat in the course of the last century, due to a host of human and environmental factors. Can the elk and the wild turkey of Ontario be successfully brought back? Join the team of daring and ambitious scientists making it happen.
Meet Hope, an orphaned baby moose being raised by a goat. Nearby, watch three unruly baby raccoons cause havoc between meal times. These are some of the adorable inhabitants of Park Omega, Quebec--a place where threatened animals get a second chance.
At 13, Kamuti is one of the oldest leopards in the Luangwa region of Zambia. Old age brings many challenges, from hunting antelope to keeping a watchful eye on the lion pride nearby. Using a military-grade thermal camera, we lift the veil on the secret world of this enigmatic nocturnal predator for the first time.