Skeletal and Muscular System
-Pelvis is upright, long, and narrow
-Thighs are long and muscular
-Shin bones elongated, but not heavily muscled
-Ankle is adapted to prevent foot rotating sideways and ankle being twisted
-Tail is counterbalance and prop
-Flexible joints important for muscle control
-Great hopping ability largely due to capacity to open joints
-Muscles very similar to other mammals, similar mitochondrial volume and oxygen
  consumtion rates,indicating muscles are as efficient as humans