Edgar Rice Burroughs Inc.

A man raised by gorillas must decide where he really belongs when he discovers he is a human.

A missing heir of respected Scottish family, raised in African jungles by animals, finally returns to his estate only to realize that difference between the two worlds is really significant.

During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.