Dr. Donald C. Johanson Movies

  • 1984
    Fossils: Clues to the Past

    Fossils: Clues to the Past

    Fossils: Clues to the Past

    01984HD

    Fossils occur only rarely, are often hard to find, and are usually a challenge to understand. But they are important clues that can help us unlock the...

    Fossils: Clues to the Past