‘Ready, steady, slow’: Championship snail racing at 0.006 mph

A gastropod competitor slides across the finish line on July 6 at the World Snail Racing Championships in the rural village of Congham, England. (Joshua Bright/The New York Times)

For the next few weeks, Paris will be home to many of the world’s impressive athletes, including some of the fastest human beings on the planet. Among the competitors gathering for the Olympic Games are runners who can knock out a marathon in just over two hours, 1 mile in under four minutes and 100 meters in less than 10 seconds.