Trees are earth's largest organisms and are also one of the planet's oldest inhabitants. Seasonal forests (unlike tropical rain-forest) the largest land habitats. A third of all trees grow in the endless taiga of the Arctic north. Northern America has forests that include California's sequoia's, the earth's largest trees. There and elsewhere, their vast production of photosynthesis and shade presides over a seasonal cycle of life and involves countless plant and animal species.
Did You Know?
David Attenborough - Narrator
Trees, surely among the most magnificent of all living things. Some are the largest organisms on Earth, dwarfing all others. And these are the tallest of them all.
[ascending 100s of feet into a redwood
Planet Earth Theme
Written by George Fenton
Performed by BBC Concert Orchestra See more