Ukrainian President Petro Poroshenko gestures during a news conference in Kiev, Ukraine, June 5, 2015. REUTERS/Mykhailo Markiv/Ukrainian Presidential Press Service/Pool

Bikers push their motorbikes during a traffic block as they take part in the “Enduropale” motorcycle endurance race on the beach of Le Touquet, northern France, February 1, 2015. About 1100 motorbike and 600 quad bike riders descend on Le Touquet every year for the racing endurance event. (Photo by Pascal Rossignol/Reuters)

An armed man herds his cattle close to the village of Nimini in northern South Sudan, February 8, 2017. In the chaos of South Sudan's civil war, it took three years for Nyagonga Machul to find her lost children. Machul had traveled from her village to the capital when President Salva Kiir, an ethnic Dinka, fired his deputy Riek Machar, a Nuer, in 2013. (Photo by Siegfried Modola/Reuters)

Hindu priests wash the head of a buffalo calf which was sacrificed as part of a ritual at a temple during the Durga Puja festival in Agartala, India, October 10, 2016. (Photo by Jayanta Dey/Reuters)

Professor Xie Yong works on an art installation of a beaver, which is made out of plastic and around 300,000 needles, in Shenyang, Liaoning province, July 23, 2013. The needles, according to Xie, represent the pain felt by animals when their fur is taken off to produce clothing. (Photo by Reuters/Stringer)

Rachel Hanson, 27 from Chicago, Illinois at the Bellagio Fountain Club at the Bellagio hotel and casino during the Formula 1 Las Vegas Grand Prix in Las Vegas, Nevada on November 18, 2023. (Photo by Bridget Bennett/The Washington Post)

A leopard attacks a forest guard at Prakash Nagar village near Salugara on the outskirts of Siliguri on July 19, 2011. Six people were mauled by the leopard after the feline strayed into the village area before it was caught by forestry department officials. Forest officials made several attempt to tranquilised the full grown leopard that was wandering through a part of the densely populated city when curious crowds startled the animal, a wildlife official said. (Photo by Diptendu Dutta/AFP Photo)