Exploring the many ways animals use colour throughout their lives.
Fascinating short documentary series revealing recent scientific findings on the topic illustrated with some spectacular photography; the third and final episode is a bit of a summary of the techniques used for the series plus some remarks on the dangers of climate change.
One man has seen more of the natural world than any other; this feature documentary is his witness statement.
More heartfelt and stirring plea than just a documentary David Attenborough presents his warning of the damage humankind has brought upon the planet as a summation of his life's work, including some spectacular nature photography.
