You might have wondered why the Earth has so many different habitats. The answer actually lies in the Earth itself: the ocean and land can tell us a lot about what affects the weather and climate in different regions. They can even tell us why different species live in certain locations. But how can we tell?
Legendary naturalist Sir David Attenborough takes us on a virtual trip across the world, and shows us how to use the Earth to understand the sky.
Watch the clips in the link below.