Nature

Though high-speed camerawork and breakthrough new science, enter the fast-paced world of hummingbirds as never before. Speed is their middle name. They possess natural super powers that enable them to fly backwards and upside-down and float in mid-air. And for the first time, see them mate, lay eggs, fight and raise families in intimate detail. They are great athletes, tender mothers and brave combatants, up for any challenge. They are the smallest, most brilliant birds on earth.

Vianet Djenguet has lived half his life in Europe, yet his heart still lies in his homeland, his Congo. As a successful wildlife cameraman, Vianet is returning to his roots to reveal the beauty and majesty of his country and the people within. His journey will be one of self-discovery as he travels up the Congo River toward his ancestral home, meeting an abundance of weird and wonderful characters along the way, both animal and human. Finally, Vianet is able to give his beloved homeland the glorious spotlight it deserves and discovers an even deeper connection with this place than he could have ever imagined. "You haven't really travelled until you experience a place like the Congo," says Vianet.

What does it take to relocate a herd of wild giraffes in Africa? One man, his family and a band of enthusiastic helpers are about to find out. Their journey will take them across the wild heart of Uganda, crossing the mighty Nile River. The size of this operation cannot be underestimated, particularly when the cargo is so precious. That's because these are no ordinary giraffes; they are, in fact, the world's rarest. Any mistake could be costly, not only for the giraffes being moved but also for an entire species.

Cats are among the most feared and revered creatures on the planet. They've dominated human culture since the dawn of civilization. They are one of the most studied mammals in the world, yet only now is their real identity being understood – from their incredible hunting abilities to their unique physiology and remarkable behaviors. With nearly 40 different species thriving in almost any environment, the cat is the greatest predator since the dinosaurs. Join NATURE in an epic two-part event to journey across the globe tracking down the origins of these diverse creatures. Get an in-depth look at this unique species and the evolutionary tricks and adaptations that truly make a cat, a cat.

Cats are among the most feared and revered creatures on the planet. They've dominated human culture since the dawn of civilization. They are one of the most studied mammals in the world, yet only now is their real identity being understood – from their incredible hunting abilities to their unique physiology and remarkable behaviors. With nearly 40 different species thriving in almost any environment, the cat is the greatest predator since the dinosaurs. Join NATURE in an epic two-part event to journey across the globe tracking down the origins of these diverse creatures. Get an in-depth look at this unique species and the evolutionary tricks and adaptations that truly make a cat, a cat.

Travel across the snow globe to meet the animal survivors of winter, from penguins to bison.

More than 30 animatronic "spy cameras" disguised as animals secretly record behavior in the wild.

Observe the world of animal intelligence through the beady camera eyes of Spy Creatures.

Join Spy Creatures and their new wild friends as they rely on each other to look out for predators.

Infiltrate the underground world of animal crime and retribution with mischievous Spy Creatures.

Go behind the scenes with the filmmakers for what goes into making films on "spies" in the wild.

Explore Yosemite with experts to discover how climate change affects the valley's majestic beauty.

Meet the scientists dedicated to restoring Puerto Rico's endangered manatees, parrots and turtles.

Join biologist Arnaud Desbiez as he "checks in" the jungle animal guests to the "Hotel Armadillo.".

Watch the regeneration of an Austrian forest where wildlife, from woodpeckers to lynx, thrives.

Infiltrate the world of dolphins as seen by the Spy Creatures, from "superpods" to gang rivalries.