Olduvai Gorge, Tanzania 2010

Randy looks over one of the exhibits inside the Oldupai Gorge Museum.  It is a reproduction of the Hominid Trackway excavated by Mary Leakey in 1978-79 which provided unique evidence of bipedalism in hominids 3.6 years ago.  You can clearly see the footprints in this resin-fiberglass cast.