"1990-10-03Z"^^ . . . . . . "The Trials of Life"@en . . . "The Trials of Life: A Natural History of Behaviour is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the United Kingdom from 3 October 1990.A study in animal behaviour, it was the third in a trilogy of major series (beginning with Life on Earth) that took a broad overview of nature, rather than the more specialised surveys of Attenborough's later productions."@en . . . . . "1990-12-19Z"^^ . "3000.0"^^ . "12"^^ . . "0133318" .