The powerful arms of the chimpanzee are longer than its legs. The chimpanzee pelvis and femur are built to navigate across ground in a quadrupedal knuckle-walking movement. While chimpanzees are able to stand upright and walk for a short distance, the shape of the pelvis and positioning of the attached muscles cause the chimp to sway from side to side in an inefficient bipedal gait.nSpecifications:nn1:1 scalenPolyurethane resin castnDurable stand on wheels included with articulated skeletonn4′ 9″ tall on standnnProduct of Bone ClonesnPlease be advised that this product is made to order and will require additional lead time. For further information about the availability and turnaround time of this item, please contact our customer service team at 1-800-659-SKULL.