April 1, 2019 • 47m
Only the toughest animal species can endure the extreme weather, scarce food and limited oxygen available on the Earth’s highest mountains.
April 8, 2019 • 47m
Dive beneath the surface of Earth’s dynamic oceans to uncover the extreme conditions to which animals must constantly adapt.
April 15, 2019 • 47m
In the grasslands, animals endure freezes, fires, floods, and droughts. Bull elephants clash in mating battles. Cheetahs and gazel...Read more
April 22, 2019 • 47m
Jungles comprise the most diverse habitats on Earth in which only the most resilient species triumph. The fiercest jungle species ...Read more
April 29, 2019 • 47m
Deserts are getting even hotter, drier and bigger, yet a host of remarkable animals still survive in the harshest of conditions, i...Read more
May 6, 2019 • 47m
The frozen poles are home to the planet's ultimate survivalists, including polar bears, penguins and Arctic wolves. Their world is...Read more