Valley of Animals ( 1963 ) was a best - seller .
Valley of Animals ( 1963 ) was followed by several others , such as Animals under my Feet ( 1965 , illustrated by Barry Driscoll ) , leading to a number of radio and television appearances .
Valley of Animals ( 1963 ) was a best - seller and was followed by several others , such as Animals under my Feet ( 1965 , illustrated by Barry Driscoll ) , leading to a number of radio and television appearances .