Participants in a fishing derby cast lines from a pier near Onondaga Lake's outflow in Syracuse, N.Y. David Chanatry for NPR hide caption

itoggle caption David Chanatry for NPR

The European hornet, or vespa crabro, helps make wine by kickstarting the fermentation process while the grapes are still on the vine. Otto Hahn/Getty Images/Picture Press RM hide caption

itoggle caption Otto Hahn/Getty Images/Picture Press RM

United States runner Kam Conley sheds layers to train for the Olympics in England on Monday. Less clothing means more evaporation, keeping athletes cooler. Hussein Malla/AP hide caption

itoggle caption Hussein Malla/AP