Harry Kaplan practices pitching during Home Run Baseball Camp at Friendship Recreation Center in June. Kaplan's arm is stretched long and toward the ground as his hips are faced away from the catcher. A chimp, in contrast, could never throw a fastball. Heather Rousseau/NPR hide caption

itoggle caption Heather Rousseau/NPR

In the current New Yorker, Michael Specter explores the conflict among some people who suffer from Lyme disease, and the doctors who study it. aanton/iStockphoto.com hide caption

itoggle caption aanton/iStockphoto.com