Scan Australia's skies for volatile weather: cooling monsoon rains, wildfires sparked by lightning and wildlife adaptations.

Watch polar bears hunt under the aurora, track a polar vortex and follow a prairie dog family dodging tornadoes.

Witness the biggest marine feeding frenzy on Earth and join wildebeest herds and elephant clans on their epic migrations.

Examine the Amazon rainforest's oxygen-breathing trees and meet flamingos that thrive in the sun's scorching UV rays.