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)

An Israeli soldier argues with a demonstrator wrapped in a Palestinian flag during a protest against Israeli settlements in Jordan Valley in the Israeli-occupied West Bank on June 6, 2022. (Photo by Raneen Sawafta/Reuters)

American singer-songwriter Billie Eilish in the last decade of October 2023 partners with Gucci to advocate for animals and gives us something to contemplate. (Photo by Instagram)

People in costumes are pictured during the annual Easter Parade and Bonnet Festival on 5th Ave in New York, Sunday, April 9, 2023. (Photo by Yuki Iwamura/AP Photo)

As cheap Chinese-made motorbikes flood Pakistan’s roads, fans of vintage Vespa scooters are scrambling to find spare parts and preserve models that hark back to a bygone era. Here: A restored Vespa scooter painted in Pakistani truck art style, is parked alongside traditionally-coloured scooters at a Vespa restoration and repair workshop in Islamabad, Pakistan February 27, 2018. (Photo by Caren Firouz/Reuters)

A bloody zombie baby head, brain and a hand made of gummy candy and red jelly are pictured as a woman works (rear) at the Zombie Gourmet homemade candy manufacturer on the outskirts of Mexico City October 30, 2015. (Photo by Carlos Jasso/Reuters)

Bikini-clad women ski as they are led by a car during a performance on the frozen Yenisei River outside Krasnoyarsk, Siberia, Russia, March 20, 2016. The performance, entitled “Siberian Spring's Strings” and created with the participation of artist Vasily Slonov, marked the day of spring equinox (vernal equinox), according to organizers. (Photo by Ilya Naymushin/Reuters)

Swedish actress Rebecca Ferguson attends the World Premiere of “Dune: Part Two” in London's Leicester Square on February 15, 2024 in London, England. (Photo by Hannah McKay/Reuters)