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)

A woman crosses the street on a foggy morning in Frankfurt, Germany, Friday, October 29, 2021. (Photo by Michael Probst/AP Photo)

Sophie Turner (L) attends HBO's Official 2019 Emmy After Party on September 22, 2019 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic for HBO)

An image taken with a drone shows beach umbrellas and deck chairs as beachgoers enjoy the hot weather in Scheveningen, the Netherlands, 24 July 2019. The Royal Dutch Meteorological Institute has issued an official warning due to high temperatures affecting the country as well as Western Europe. (Photo by Sem van der Wal/EPA/EFE)

People gather to view a new art installaiton at Waterfront Park entitled, Interstellar Influencer (Make an Impact) by Jason Klimoski and Lesley Chang of STUDIOKCA on Saturday March 30, 2024 in Alexandria, VA. The artwork depicts an asteroid that struck the region millions of years ago. (Photo by Matt McClain/The Washington Post)

Sunrise in the New Forest near Lyndhurst in Hampshire, UK this morning, August 15, 2024. (Photo by Cenk Albayrak-Touye/Picture Exclusive)

Girls dressed in traditional costumes run as men throw water on them as part of Easter celebrations during a presentation to the media in Mezokovesd, Hungary, April 13, 2017. (Photo by Laszlo Balogh/Reuters)

A girl lights a candle as she marks the anniversary of 2015 Nepal earthquake, at Boudhanath stupa in Kathmandu, Nepal April 25, 2017. (Photo by Navesh Chitrakar/Reuters)