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No Two Radiated Tortoises Are Alike

No Two Radiated Tortoises Are Alike

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1:16
Growing Up as a Radiated Tortoise

Growing Up as a Radiated Tortoise

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0:48
Hummingbird Rescue: Baby Twins

Hummingbird Rescue: Baby Twins

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2:18
A Hummingbird Love Story

A Hummingbird Love Story

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1:43
Meet the Chameleons of Madagascar

Meet the Chameleons of Madagascar

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1:37
The Weird Way Walruses Eat With Their Tongue

The Weird Way Walruses Eat With Their Tongue

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2:44
What is the Arctic Death Spiral?

What is the Arctic Death Spiral?

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2:42
This Tiny Walrus Will Melt Your Heart

This Tiny Walrus Will Melt Your Heart

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2:48
Mountain Lion vs. Elk: Rare Hunt Caught on Camera

Mountain Lion vs. Elk: Rare Hunt Caught on Camera

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2:54
Caught on Camera: Mother Hunts Elk to Feed Six Kittens

Caught on Camera: Mother Hunts Elk to Feed Six Kittens

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3:17
Pigeon Dating Rituals: The Strut, The Coo… and The Kiss

Pigeon Dating Rituals: The Strut, The Coo… and The Kiss

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3:26
Pigeon Gangs of New York: 5th Ave vs. Central Park

Pigeon Gangs of New York: 5th Ave vs. Central Park

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3:12
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Nature

Life-Saving Bridges For Sloths

Climb into the jungle canopy with Tamara Ávila Atagua as she builds life-saving bridges for sloths in Costa Rica.
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Echoes from the Ice
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55:02
Season 12 Episode 3
Echoes from the Ice
The walls of ice in Glacier Bay surround the most beautiful sights Alaska has to offer.
Spirit of the Sound
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54:29
Season 10 Episode 18
Spirit of the Sound
Exploration of Puget Sound's ecosystem.
Dolphins: Close Encounters
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59:50
Season 10 Episode 11
Dolphins: Close Encounters
These small whales have proved remarkably rugged and intelligent.
Grand Teton Wilderness
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50:23
Season 9 Episode 35
Grand Teton Wilderness
The human and natural histories of the Grand Tetons and Jackson Hole, Wyoming
Yellowstone on Fire
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56:16
Season 9 Episode 19
Yellowstone on Fire
Fire and the Yellowstone National Park ecosystem
The Colorado
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56:34
Season 9 Episode 14
The Colorado
River from Rockies to near Sea of Cortez
Monkeys on the Edge
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57:17
Season 8 Episode 22
Monkeys on the Edge
Brazilian primates face extinction.
Islands in the Sky
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55:38
Season 8 Episode 18
Islands in the Sky
Tepuyes, Venezuelan monoliths, Roriama and Chimanta
Cowboys, Caimans & Capybaras
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56:36
Season 7 Episode 18
Cowboys, Caimans & Capybaras
Columbia and Venezuela, The Llanos grassland. Wolfgang Bayer & wildlife
Amazonia: Burning Question
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57:11
Season 7 Episode 2
Amazonia: Burning Question
Amazon & World Wildlife Fund Project
America's Wild Horses
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57:49
Season 6 Episode 14
America's Wild Horses
American mustangs struggling to survive
Gooneys of Midway
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57:27
Season 5 Episode 419
Gooneys of Midway
Gooney bird, Midway Island Albatross
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