Planet Earth - Series 1 Ep. 10 - Seasonal Forests

Synopsis

The Taiga forest, on the edge of the Arctic, is a silent world of stunted conifers. A third of all trees on Earth grow here and during the short summer they produce enough oxygen to change the atmosphere. In California, General Sherman, a giant sequoia, is the largest living thing on the planet, ten times the size of a blue whale. The oldest organisms alive are bristlecone pines. At more than 4,000 years old they pre-date the pyramids. But the baobab forests of Madagascar are perhaps the strangest of all.

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