Physiological and anatomical data are combined with modern motion capture technology to create a digital model of a fully-formed Ardipithecus ramidus that moves through an ancient woodland meticulously recreated from intensive fieldwork and analysis.
To explain the origins of bipedality and smaller canines, Owen presents the "male provisioning" theory to account for the early appearance of both adaptations.
Berhane Asfaw describes how the present-day hills in the Middle Awash don't look anything like what was there two million years ago, before tectonic earth movements tilted the layers and uplift led to erosion.
As Tim White knows all too well, hunting fossils in the remote, trackless Afar region of Ethiopia is a daunting undertaking that pushes any scientific team to the limits.