At the heart of the US-Canada border sit The Great Lakes - the world's largest freshwater ecosystem, containing as much as one fifth of the planet's supply. Chapter 1: Source to Sea The water's journey from source to sea spans half a continent - 2,000 miles - and takes more than three centuries to complete. This first of three documentaries charts the feature and its surrounding flora and fauna, showing how beavers, wolves, loons, moose help shape this incredibly vast watershed. Chapter 2: The Big Freeze s winter descends on The Great Lakes, life must contend with the return of the ice that carved this immense watershed thousands of year ago. A polar vortex paralyses fish and ducks and attracts hundreds of bald eagles. Wolves hunt deer trapped by ice, but are manipulated by ravens. Chapter 3: Marvels and Mysteries The spring thaw in America's Great Lakes creates ice tsunamis. Photosynthetic salamanders, fishing wolves, deep-diving moose, baby rattlesnakes and colourful fish hunting mid-air all illustrate unique adaptations to to the warmer, brighter season.
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We’ve heard that bees are disappearing. But what is making bee colonies so vulnerable? Photographer Anand Varma raised bees in his backyard — in front of a camera — to get an up close view. This project, for National Geographic, gives a lyrical glimpse into a bee hive — and reveals one of the biggest threats to its health, a mite that preys on baby bees in the first 21 days of life.
South America - the most species rich continent on Earth. From the volcanoes of the Andes to the world’s largest rainforest, the Amazon, animals here must specialise to carve out a niche. In Patagonia, a puma mother draws on a lifetime’s experience to catch prey three times her weight. In the cloud forest, rarely seen Andean bears clamber thirty metres into the canopy to find elusive fruit. Poison dart frogs use ingenious methods to keep their tadpoles safe, whilst anacondas stalk capuchin monkeys. At Igauzu, swifts make death-defying flights through one of the biggest waterfalls on Earth.
S1E3 • Seven Worlds, One Planet • 2019 • Nature
Like most big cats, the leopard is a master of secrecy. It's one of the hardest of all big cats to see, let alone observe. This is mainly because leopards need absolute invisibility to hunt. This is why they're such good climbers and why they evolved to be so incredibly secretive.
S1E5 • The Secret Lives of Big Cats • 2019 • Nature
Kamuti the leopard has reigned supreme over her corner of the Luangwa Valley for 10 years. She's defended her territory, hunted antelope for food, and even kept the nearby pride of lions at bay. But a younger leopard is determined to replace her. Can she survive one more challenge, or will this be her last stand?
S1E2 • Africa's Hunters • 2015 • Nature
As the expedition team near the end of their journey across Micronesia, it's a race against time for the extreme deep divers as they continue their search for new species. As Kate Humble explores the Rock Islands of Palau, Mike DeGruy embarks on a unique training programme. The Newtsuit is an incredible feat of submarine engineering - a bright yellow one-man submersible that Mike has to master before he can venture even deeper into the Pacific abyss.
S1E3 • Pacific Abyss • 2008 • Nature
There's a whole world, and more than one spectrum of sensations that animals are aware of, which surpass humans. There's a kind of "sixth sense" that some animals have, which still defies explanation. Call it extra-sensory perception animal abilities we can't entirely explain.
S1E6 • Animal Super Senses • 2020 • Nature