自然界大事件 Nature's Great Events

　　Nature’s Great Events is a BBC nature documentary series broadcast from 11 February 2009.[1] The British version is narrated by David Attenborough and is being shown on BBC One and BBC HD. It should not be confused with the 1996 Reader's Digest video series of the same name.
　　 In the USA, the series will broadcast on the Discovery Channel under the alternative title Nature’s Most...