Alone on the endless red-sand desert in the Australian outback, tracking Varanus giganteus, the perentie lizard that grows to be more than six feet long ...for desert rat Eric Pianka, such adventures have led to a satisfying, if unusual, way of life, as well as a distinguished career as a field biologist. In The Lizard Man Speaks, Pianka recounts more than thirty years of adventures in reptile studies.