The filming began in spring 1959. Schuhmacher and his cinematographer Helmuth Barth (who has later worked on the Academy Award-winning movie The Hellstrom Chronicle) have gone on a 7-year travel (from 1959 to 1966) to film several of the most endangered animals of the world.
Filming commenced in spring 1959. Schuhmacher and cinematographer Helmuth Barth, who had previously collaborated on the acclaimed film The Hellstrom Chronicle, embarked on a seven-year expedition (from 1959 to 1966) to document several of the world's most threatened species.