EvolutionFebruary 1, 1982
The Fossil Footprints of Laetoli
At this site in Tanzania thousands of animal tracks, including those of predecessors of man, are found in volcanic ash that fell some 3.5 million years ago
Stories by Richard L. Hay
The Fossil Footprints of Laetoli
At this site in Tanzania thousands of animal tracks, including those of predecessors of man, are found in volcanic ash that fell some 3.5 million years ago