A photographer tested the concentration of several pairs of dogs as he captured their reactions to treat time in a series of shots. Christian Vieler, 47, of Waltrop, Germany, has been a professional dog photographer since 2016. He came up with the idea of snapping two dogs catching treats simultaneously. Here: Basset Hounds. (Photo by Vieler Photography/Caters News Agency)

Models present creations by LaQuan Smith at the Intrepid during fashion week in Manhattan, New York City, U.S., September 12, 2022. (Photo by Caitlin Ochs/Reuters)

A tourist takes photos among fireweed, or kochia scoparia, at an archaeological site park on September 13, 2022 in Xi'an, Shaanxi Province of China. (Photo by Zhang Yuan/China News Service via Getty Images)

Members of the Radio City Rockettes rehearse for the “2022 Christmas Spectacular Starring the Radio City Rockettes” in Manhattan, New York City, U.S., October 19, 2022. (Photo by Eduardo Munoz/Reuters)

American fashion model Karlie Kloss arrives at Wall Street Journal Awards event on November 02, 2022 in New York City. (Photo by Gotham/GC Images)

Cute sеxy caucasian brunette young woman dressed as Mrs. Santa Claus, smiling with joy, biting a candy cane with eyes closed, Christmas or New Years Eve 2022 concept. (Photo by Cryptographer/Rex Features/Shutterstock)

People dance during New Year's celebrations in downtown St. Petersburg, Russia, early Sunday, Januaru 1, 2023. (Photo by Dmitri Lovetsky/AP Photo)

A woman poses for a selfie on a bridge decorated with lanterns at a public park in Beijing on the first day of the Lunar New Year holiday, Sunday, January 22, 2023. (Photo by Mark Schiefelbein/AP Photo)