3 books in series

Life Trilogy

Life Trilogy is a 3-book series with 3 primary works first released in 1979 with contributions by David Attenborough.

Life on Earth
The Living Planet: A Portrait of the Earth
Living Planet: The Web of Life on Earth
The Trials of Life: A Natural History of Animal Behaviour
The Trials of Life: A Natural History of Animal Behavior
The Trials of Life