In 2009, paleoanthropologists found eight bones from the foot of an ancient human ancestor in 3.4-million-year-old sediments at the paleontological site of Woranso-Mille in the Afar Rift in Ethiopia.

Imagine being reprimanded for arriving late for a course, but the lecturer is also late, so you didn’t really miss anything. Would you brush it off or start taking the hours of the course a little bit ...