Most coaches have a mentor who helped get them started and whose influence remains strong throughout their careers. Few have a bond as strong as the one between Rhett Lashlee and his mentor Gus ...

More by John Napier This article was originally published with the title “ The Antiquity of Human Walking ” in Scientific American Magazine Vol. 216 No. 4 ( April 1967 ) , p. 56 doi: 10.1038 ...