Examine the fragile interdependence that exists between forests' wide variety of residents, including bald eagles, hunting dogs and Siberian tigers.

Be it buffalo, polar bears, humpback whales or albatross chicks, migration is a vital survival strategy for animals to feed, reproduce and find homes.

As summer spreads across our solar-powered planet, honey bees toil, snow geese breed, tadpoles awaken and lions stalk wildebeest in search of lush grass.