04:33 The “cuddle hormone” oxytocin has a darker purpose Oxytocin levels surge in troops of chimpanzees preparing for conflict with rival groups. Read more: 0
04:33 What is the Purpose of Life? (Big Picture Ep. 5/5) This video is about how life arose and what its main function or purpose in the universe seems to be. Thanks to for supporting this video, and to Sean Carroll … 0