The Hairy Men of Mars

The Galasphere's Meson unit malfunctions and lands in the unexplored Tuhera jungle. Dart and Husky leave to fix the problem. When Husky fails to return, Dart follows and is captured by a giant primitive man. Husky speaks with the giant in its native language and they are set free. They return to Earth with some Martian fruit which makes hair grow—the perfect solution to Haggarty's problem