The Green Planet
Tropical Worlds
Sir David Attenborough takes a plants-eye view of life in a rainforest.
Latest in
The Green Planet
Sponsorship
The Green Planet
Seasonal Worlds
Sir David Attenborough reveals the surprising effects of the seasons on plant life.
The Green Planet
Human Worlds
Sir David Attenborough reveals how humans help plants, many of which face extinction.
The Green Planet
How Saguaro Cacti Store 1000 Gallons of Water
The saguaro features a pleated surface which allows it to expand.