Circling the equator for a look at the diverse species that dwell in tropical forests; meeting a lone sloth growing a mini-forest; lemurs that share and share alike; elephants that tend to their woodland gardens; exploring the region's dark side.

As the seasons wax and wane, a look at how trees and animals help one another survive. Witnessing spring fireflies dancing after dark, summer fungi that cool off overheated trees, and autumn migrations.

Wading into wetlands, where trees and water meet to nurture new life; diving into an underwater forest that protects young fur seals; visiting a mangrove sanctuary where a curious band of aquatic misfits hides out.

Climbing into a realm of thin air and towering rock; tagging along as mythical monkeys battle for a winter food stash; singing along with lemurs in a fruit-filled tree canopy.

Travelling to the Arctic for a peek at the brutal challenges of life in the boreal forest; admiring some stellar animal adaptations; witnessing a secret reindeer superpower; navigating a rodent labyrinth of snow.

Learn how plants and animals tough it out in some of the driest terrain Earth has to offer. Run across thirsty trees that act as elephant signposts, see insects team up with plants for a chance at life, and get insight into natural chemical warfare.