Two Wild pigs are seen in theirs corral at the Moritzburg Wildpark near Moritzburg, Germany, 21 June 2019. (Photo by Filip Singer/EPA/EFE)





A monkey eats iced cherries to cool off at the Rome zoo (Bioparco di Roma) as temperatures reach 36 degrees Celsius on June 27, 2019 in the Italian capital. (Photo by Tiziana Fabi/AFP Photo)





A zookeeper uses water to cool off elephants, as a heatwave is expected to reach the city, at the Berlin Zoo, Germany on June 25, 2019. (Photo by Annegret Hilse/Reuters)





A seized red-eared slider tortoise is pictured during a press conference at the customs authorities building in Sepang on June 26, 2019 after a foiled smuggling attempt by a syndicate. (Photo by Mohd Rasfan/AFP Photo)





In Iceland horse is sprayed with water at a stud in Wehrheim near Frankfurt, Germany, on a hot and sunny Wednesday, June 26, 2019. Hot temperatures are expected all over Europe. (Photo by Michael Probst/AP Photo)





A hippopotamus rests in its enclosure in Schoenbrunn zoo, as a heatwave hits the country, in Vienna, Austria on June 26, 2019. (Photo by Leonhard Foeger/Reuters)





A child gestures in front of a polar bear in its pond at the zoo of Mulhouse, eastern France, on June 26, 2019 as temperatures were to soar to record highs in several European countries today. (Photo by Sebastien Bozon/AFP Photo)





Elephants prepare to cross a road as cars drive by in Kasane, in the Chobe district, Northern Botswana, on May 28, 2019. Last month, the government lifted a blanket hunting ban, imposed in 2014 by then-president Ian Khama, on the grounds that elephant numbers were growing. The decision angered many conservationists and stirred up a political hornet's nest as elections loom later this year. Botswana fended off criticism of its decision to end the five-year ban, saying the move would not threaten the elephant population. (Photo by Monirul Bhuiyan/AFP Photo)





Rascal Deux, a naturally hairless mix with a crooked face, two different colored eyes and a loose tongue, walks the stage during the World's Ugliest Dog Competition in Petaluma, California on June 21, 2019. (Photo by Josh Edelson/AFP Photo)





Polar bear Nanook jumps into the water at the zoo in Gelsenkirchen, Germany, June 25, 2019. Germany faces a heatwave with temperatures up to 40 degrees Celsius. (Photo by Roland Weihrauch/dpa via AP Photo)





An orang-utan takes shelter from the sun under a blanket at the zoo Schoenbrunn in Vienna, Austria, Tuesday, June 25, 2019. Europe is facing a heatwave with temperatures up to 40 degrees. (Photo by Daniel Zupanc/Vienna Zoo via AP Photo)





A Western lowland gorilla holds on to her ice cream, prepared from fruits and vegetables, on a hot and sunny day at the Prague Zoo, Czech Republic, Thursday, June 27, 2019. (Photo by Petr David Josek/AP Photo)





A polar bear enjoys an ice cream, prepared from fish, fruits and vegetables, on a hot and sunny day at the Prague Zoo, Czech Republic, Thursday, June 27, 2019. (Photo by Petr David Josek/AP Photo)





A spaniel jumps into a pool at Bristol Dogfest, where hundreds of dogs enjoy a canine festival dubbed the Glastonbury for dogs, at Ashton Court Estate, Bristol on June 23, 2019. (Photo by Ben Birchall/PA Images via Getty Images)





A handout photo made available 24 June 2019 by Loro Parque Zoo shows orcas in captivity in Puerto de la Cruz, Tenerife, Canary Islands, Spain. Loro Parque Zoo has published a recent study in “zoo biology” that reveals the way in which killer whales make up after an argument. According to this study, two killer whales will pinch each other's tongues without actually biting in a ritual that comes after an argument. (Photo by Loro Parque Zoo/EPA/EFE/Rex Features/Shutterstock)





Polar bear “Milana” holds an ice cake with frozen fruit as she takes a bath in her pool at the zoo in Hanover, northern Germany, where temperatures reached around 33 degrees Celsius on June 26, 2019. Meteorologists blamed a blast of hot air from northern Africa for the heatwave early in the European summer, which could send thermometers above 40 degrees Celsius (104 Fahrenheit) in France, Spain and Greece on Thursday and Friday. (Photo by Hauke-Christian Dittrich/dpa/AFP Photo)





A jaguar cools off in the pool of the Bordeaux-Pessac Zoo in Pessac, southwestern France, on June 26, 2019, during an ongoing heatwave across Europe. Authorities raised alerts on June 26 as Europe's record-breaking early-June heatwave threatened to intensify with temperatures heading into the 40s Celsius. (Photo by Mehdi Fedouach/AFP Photo)





A gorilla cube named Pepe eats frozen fruit to fight high temperatures at the Bioparc zoo in Valencia, eastern Spain, 28 June 2019. Spanish peninsula is suffering a heat wave with temperatures reaching up to 45 degrees. (Photo by Kai Foersterling/EPA/EFE/Rex Features/Shutterstock)