Cold Blooded Killers • 2016 • episode "S1E4" • Attack and Defend

52:56

Hummingbirds represent one of nature's most interesting paradoxes - they are the tiniest of birds, yet they qualify as some of the toughest and most energetic creatures on the planet. New knowledge gained from scientists currently making great breakthroughs in hummingbird biology makes this a perfect time to focus on these shimmering, flashing jewels of the natural world. Stunningly beautiful high-definition, high-speed footage of hummingbirds in the wild combined with high-tech presentations of their remarkable abilities help us to understand the world of hummingbirds as we never have before.

PBS Nature • 2013 • Nature

58:00

It's time to close another chapter in the lives of the animals of the Serengeti, the end of an extraordinary year for them all. But first, all around is a blackened smoking wasteland, the aftermath of the huge fire. Which of the families made it out alive and who is still missing? Torrential rain brings hope and the land is reborn into a green paradise as water quenches the scorched earth. Mirroring the changes in the landscape, the cycle of death and rebirth comes to the fore as the Serengeti's elders prepare their young for adulthood and a life on their own. Lioness Kali is alive, but one of her three cubs is missing. Kike the cheetah returns and must train her grown-up cubs to survive on their own. The short, lush grasslands make the perfect training grounds for her lessons of survival. She teaches them to stalk, chase and trip their prey. A giraffe, grieving over the unexplained death of her calf, interrupts the cubs' training regime. Leader of the wild dogs Jasari is also showing his pups how to survive on their own, but when he teaches them to fight off hyenas, they too are interrupted by the grieving giraffe. In the flooded river, elephant matriarch Nalla's baby struggles in the torrents. Bakari returns when a huge fight with a rival baboon troop threatens his family, and he shows his bravery once more. Kali has yet more surprises in store which bring hope for her and her pride's future. Kike has to leave her cubs and hope that they are ready for independence. With the death of an old male elephant, all the families come together and old rivalries end in a remarkable truce. With a new regime in place among the baboons, the harmony of nature is restored and for now, the future is bright for the families of the Serengeti.

S1E6 • Serengeti • 2019 • Nature

48:01

In the misty and lush tropical forest surrounding South Africa's Soutpansberg Mountains, a 600-year-old outeniqua yellowwood tree reigns supreme. It's 115 feet tall, and a source of food and shelter for an array of plants and animals. Crowned eagles construct massive nests in her fold, and Samango monkeys take refuge in her branches. As if it wasn't unique enough, this ancient, endangered tree has no flowers, instead reproducing through male and female cones-a marvel of the natural world, and a true South African treasure.

S1E3 • Rooted • 2018 • Nature

49:04

Revealing the titanic efforts behind Blue Planet, this diary reveals the skills and dedication of the film makers.

Blue Planet I • 2001 • Nature

59:07

Isolated since the time of the dinosaurs, New Zealand's wildlife has been left to its own devices, with surprising consequences. Its ancient forests are still stalked by predators from the Jurassic era. It's also one of the most geologically active countries on earth. From Kiwis with their giant eggs, to forest-dwelling penguins and helicopter-riding sheep dogs, meet the astonishing creatures and resilient people who must rise to the challenges of their beautiful, dramatic and demanding home.

Part 1 • New Zealand: Earth's Mythical Islands • 2016 • Nature

47:24

The frozen poles are home to the planet's ultimate survivalists, including polar bears, penguins and Arctic wolves; their world is changing fast -- breaking apart under their feet -- and their resilience will be tested beyond the extreme.

S1E6 • Hostile Planet • 2019 • Nature