First, the headline for this story: 30-year-old Kenichi Ito broke the Guinness World Records Thursday.
Mr. Ito is now the world's fastest sprinter on four limbs and not for the first time.
Thursday,at a track in Toyko, he clocked a time of 171/2 seconds for running 100 meters on all fours.
In doing so, he broke his own record of more than 181/2 seconds set back in 2008.
After setting the record, he told reporters that hopes that one day racing on four legs will become an official track and field sport.