Columbus the scarlet macaw stands under a water shower at the Weltvogelpark bird park in Walsrode, Germany, June 23, 2016. (Photo by Holger Hollemann/EPA)





A Puffin jumps into its burrow with a mouthful of sea eels to feed its chick on Skomer Island, Pembrokeshire in Wales, Britain June 21, 2016. (Photo by Rebecca Naden/Reuters)





A grizzly bear sow and her cubs walk through the underbrush in Yellowstone national park, Wyoming, US on June 20, 2016. (Photo by NPS Photo/Alamy Stock Photo)





Twin giant panda cubs are seen in Chengdu, Sichuan Province, China, June 21, 2016. According to local media, a giant panda named Ya Li gave birth to the twins on June 20, 2016, which are the first giant panda twins of 2016 anywhere in the world. (Photo by Reuters/China Daily)





A captive alligator is pictured as it rains in Oviedo, Florida, U.S., June 18, 2016. (Photo by Carlo Allegri/Reuters)





An American white ibis bird comes in for a landing in Orlando, Florida, U.S., June 17, 2016. (Photo by Carlo Allegri/Reuters)





A humpback whale breaches off the coast at Clovelly Beach in Sydney, Australia, June 19, 2016. (Photo by David Gray/Reuters)





A humpback whale breaches off the coast at Clovelly Beach in Sydney, Australia, June 19, 2016. (Photo by David Gray/Reuters)





A humming bird is seen landing on a bird feeder at a public square in Santiago, Chile, June 19, 2016. (Photo by Rodrigo Garrido/Reuters)





An emu runs to escape an approaching wildfire as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





An emu runs to escape an approaching wildfire as it burns near Potrero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





An emu runs to escape an approaching wildfire as it burns near Potrero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





U.S. Customs and Border Patrol officer Constantino Zarate tries to heard an Emu off the highway as a wildfire continues to burn north of the U.S. Mexico border near Potrero, California, U.S. June 21, 2016. (Photo by Mike Blake/Reuters)





Resident Davi Souza gives a fish to a “Boto Cor-de-Rosa” (Pink River Dolphin), as he takes part in the Olympic Flame torch relay at Solimoes River in Iranduba city, Amazonas state, Brazil, June 20, 2016. (Photo by Fernando Soutello/Reuters/Courtesy of Rio2016)





Kavaan, a 29-year-old male elephant, is seen inside its enclosure at a zoo in Islamabad, Pakistan June 22, 2016. (Photo by Faisal Mahmood/Reuters)





Kavaan, a 29-year-old male elephant, is seen inside its enclosure at a zoo in Islamabad, Pakistan June 21, 2016. (Photo by Faisal Mahmood/Reuters)





A zoo worker bathes Kavaan, a 29-year-old elephant, in its inclosure at a zoo in Islamabad, Pakistan June 21, 2016. (Photo by Faisal Mahmood/Reuters)





Alligators are seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24 2016. (Photo by Jorge Adorno/Reuters)





An alligator is seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24 2016. (Photo by Jorge Adorno/Reuters)





Alligators are seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24 2016. (Photo by Jorge Adorno/Reuters)





Alligators are seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24, 2016. (Photo by Jorge Adorno/Reuters)





Alligators are seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24, 2016. (Photo by Jorge Adorno/Reuters)





Alligators are seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24, 2016. (Photo by Jorge Adorno/Reuters)





An alligator is seen in a pond that is not receiving water from the Pilcomayo river, on the border between Paraguay and Argentina, that is facing its worst drought in almost two decades, in Gral. Diaz, 500 km northwest of Asuncion, June 24, 2016. (Photo by Jorge Adorno/Reuters)





Caroline Cuthbertson (not shown) Highland Cow Alltruedh of Crannich ahead of the Royal Highland Show being held near Edinburgh, Scotland on June 22, 2016. (Photo by Andrew Milligan/PA Wire via ZUMA Press)





In this June 16, 2016 photo, an immature double-crested cormorant sits atop a tree on island “B” of the Four Brothers Islands on the New York side in Lake Champlain. Biologists have been working to reduce the populations of the birds in the nesting grounds on the islands in the lake. But a federal judge's decision suspended efforts to control the bird on Lake Champlain and in 24 eastern states. (Photo by Wilson Ring/AP Photo)





Chipmunk holding dandelion, Cheney, Washington, US on June 20, 2016. (Photo by Rex Features/Shutterstock)





This photo taken on June 18, 2016 shows a female oriental magpie robin bird fighting with garden lizard at the Hlawga National Park in Mingaladon, some 22 miles (35 km) north of Yangon. (Photo by Ye Aung Thu/AFP Photo)





Roseate spoonbills reflected in the calm waters of the Merritt Island National Wildlife Refuge in Florida, US on June 23, 2016. (Photo by USFWS Photo/Alamy Stock Photo)





A pride of lions were preparing to enjoy the spoils of a successful wildebeest hunt in Kenya’s Masai Mara but a whole cast of hungry animals, including hyenas, jackals and even some seemingly vengeful wildebeest encroached on the scene. (Photo by Ceri James/Rex Features/Shutterstock)





A Eurasian lynx sleeping under pine tree in coniferous forest, Bavaria, Germany on June 20, 2016. (Photo by Clement Philippe/Alamy Stock Photo)





Flying male frigate bird during the mating season, Christmas Island, Kiribati. (Photo by Natalia Harper/Alamy Stock Photo)





A picture made available on 20 June 2016 shows young visitors (front) looking through the glass at the African penguins exhibit, also known as Jackass penguins, at the Siam Ocean World in Bangkok, Thailand, 19 June 2016. The Aquarium, located inside one of Bangkok's high-end shopping malls, is one of the largest in Southeast Asia and is host to over 30,000 marine creatures inside its ample 10,000 square meters of space. Popular among local families and tourists alike, the aquarium offers visitors the chance to walk through a 270 degree underwater tunnel, the chance to swim with sharks, or look at marine life from a glass-bottom boat. (Photo by Diego Azubel/EPA)





A photograph made availble on 22 June showing fallow-deer stags with growing, velvet covered antlers are seen in a forest of Sefag Forestry Management and Wood Industry Corp. near Barcs, 247 kms south of Budapest, Hungary, 21 June 2016. (Photo by Attila Kovacs/EPA)





Christening of newborn gorilla Ajabu in Prague Zoo, Czech Republic, June 19, 2016. Ajabu was born unexpectedly in the Prague Zoological Garden at the end of April. Parents are female Shinda and male Richard. (Photo by Roman Vondrous/CTK via ZUMA Press)





A turtle takes cover in the freshwater pond in Downs Park in Pasadena, MD on June 23, 2016. (Photo by Linda Davidson/The Washington Post)





A Siberian tiger cools itself in the pool of its enclosure in the Gyongyos Zoo in Budapest, Hungary, June 24, 2016. The Hungarian health authority has issued the second highest degree heat alert till next Sunday. (Photo by Peter Komka/AP Photo)





An undated handout picture made available by the Australia Zoo on 20 June 2016 shows Reggie, a new Sumatran tiger cub born at Australia Zoo, on the Sunshine Coast, Queensland, Australia. (Photo by Ben Beaden/EPA/Australia Zoo)





A four day old Grevy's zebra stands with her mother Adia in their habitat at the Lincoln Park Zoo Wednesday, June 22, 2016, in Chicago. The zebra is native to eastern Africa and is endangered in the wild because of hunting and habitat loss. Lincoln Park Zoo is part of a nationwide conservation effort to save the animals. (Photo by Teresa Crawford/AP Photo)





In this Tuesday, June 21, 2016 photo, a male New England cottontail rabbit sits in a pen at the Roger Williams Park Zoo, in Providence, R.I. In an ambitious restoration project, following 50 years of decline in the population of the species due to reduced habitat, federal and state authorities are raising the rabbits in captivity to release scores of tiny bunnies this summer into areas where thickets and brush have returned. (Photo by Steven Senne/AP Photo)





A horse is pictured at Saint-Clement-des-Baleines, France on June 23, 2016. (Photo by Pierre-Philippe Marcou/AFP Photo)





A marabou stork is pictured at the Beauval Zoo in Saint-Aignan, near Tours, on June 23, 2016. (Photo by Guillaume Souvant/AFP Photo)





A white tiger shakes off water while swimming at the Beauval Zoo in Saint-Aignan, near Tours, on June 23, 2016. (Photo by Guillaume Souvant/AFP Photo)