Disciplinary competition for resources favored the demise of group selection within sociobiology, at considerable loss to evolutionary theory. … Read the post multilevel selection theory in its intellectual-cultural context
Primate neural systems process gaze relatively well. Infant chimpanzees aged 10-32 weeks prefer photographs of human faces with eyes open compared to photographs with eyes shut, and with direct gaze compared to averted gaze. By four months of age, human infants can discriminate between faces with direct and averted gaze. In adult humans, direct gaze … Continue reading cross-species evidence on presence