"Is this a good evolutionary adaptation, or is it going to lead us to being the shortest lived hominid species on planet earth?" Listen as Kenyan paleontologist Louise Leakey discusses our evolution from common ancestry and her work in East Africa looking for fossil remains to piece together our evolutionary past. Leakey illustrates the steps of finding and excavating fossils, the geographic processes involved in preserving and locating fossils, and the major characteristics of homo erectus, such as his/her life expectancy, physical health, abilities, activities. etc.