Society

• Australopithecus anamensis was found in a single region east of Lake Turkana in Kenya, especially the regions of Kanapoi and Allia bays.
  

• They lived in grassland and bushlands, with some forestation.

• Some evidence suggests that anamensis was still very comfortable in the trees. 

• Erosion of the teeth shows they ate grasses, leaves, and tubers, as well as the fruits and nuts they would have found in trees as gatherers.

• No significant tools of theirs have been found, so they may not have had any.

• Like any other primate, Australopithecus anamensis likely lived in groups or troupes.

Anatomy

• Semi-large canines show anamensis was tearing into its food.

• Parallel tooth rows, (rather than the human parabolic), show that they ground their food in a fashion similar to that of cattle like mammals.

• Their tibia had developed thickness in certain areas prone to stress in bipeds, showing that they had transitioned from being quadrupedal to walking on two legs.

• Comparatively long arms means that anamensis was still climbing in the trees.

• Postcranial development supports the head in an upright position, as they were bipedal.