Australopithecus anamensis (or Praeanthropus anamensis) is a stem-human species that lived approximately four million years ago. Nearly one hundred fossil specimens are known from Kenya[2] and Ethiopia,[3] representing over 20 individuals. It is accepted that A. anamensis is ancestral to A. afarensis and continued an evolving lineage.[4] Fossil evidence determines that the Australopithecus anamensis is the earliest hominin species in the Turkana Basin.[5] Due to an inability to retrieve a massive collection of fossils researchers are not able to make enough observations to differentiate a lot of the early hominids.[6]