Summit, an Australian shepherd, makes a leaping catch of a frisbee at the pet trade fair (Heimtiermesse) at Velodrom on November 2, 2012 in Berlin, Germany. Exhibitors are showing the latest trends in collars, snacks and other accessories for cats, dogs and other household pets. (Photo by Sean Gallup)

A large Pacific sideband snail slowly crosses a rain wet road in rural Douglas County, Oregon near Elkton on Sunday, December 2, 2012. The moisture loving snail should be very content with the recent heavy rains in southwestern Oregon and northern California. (Photo by Robin Loznak)

VIETNAM: A Vietnamese woman, wearing the traditional “ao dai” long dress, poses for photos along peach blossom flowers ahead of the Vietnamese “Tet” (Lunar New Year festival), in a field in Hanoi, Vietnam, February 2, 2016. (Photo by Reuters/Kham)

A woman holds a rooster burned during a fire on a hill, where more than 100 homes were burned due to a forest fire but there have been no reports of death, local authorities said in Valparaiso, Chile January 2, 2017. (Photo by Rodrigo Garrido/Reuters)

2016 Rio Olympics, Weightlifting, Final, Women's 48kg, Riocentro, Pavilion 2, Rio de Janeiro, Brazil on August 6, 2016. Beatriz Piron (DOM) of Dominican Republic fails to lift. (Photo by Kai Pfaffenbach/Reuters)

Laura Giombini of Italy reacts during the Women's Beach Volleyball preliminary round Pool D match against Jamie Lynn Broder and Kristina Valjas of Canada on Day 2 of the Rio 2016 Olympic Games at the Beach Volleyball Arena on August 7, 2016 in Rio de Janeiro, Brazil. (Photo by Shaun Botterill/Getty Images)

U.S. Army soldiers with the 1st Battalion, 501st Infantry Regiment deployed to Combat Outpost Sabari, Afghanistan scan their area as they begin a multi-day air assault mission near the Pakistani border of eastern Afghanistan's Khost province May 2, 2012. (Photo by Staff Sgt. Joshua L. DeMotts/U.S. Air Force)

The new Citroen Concept Car Divine DS is presented at the 2014 Paris Auto Show on October 2, 2014 in Paris on the first of the two press days. European carmakers are hoping to impress with new models at this week's Paris Motor Show and prove they have come out stronger from years of economic trouble and cost-cutting. (Photo by Miguel Medina/AFP Photo)