Martin Häusler is a general physician and paleoanthropologist, and is the head of the Evolutionary Morphology Group at the Institute of Evolutionary Medicine, University of Zürich, Switzerland. For over 30 years he has been interested in the evolutionary background of musculoskeletal problems and of the complex human birth. Currently, he leads two Swiss National Science Foundation projects on "The evolutionary selective pressures shaping the human pelvis: inferences from old bones, wide hips and energetics”, and “Evolutionary and ontogenetic foundations of modern body form”, respectively.