Maksym Demchuk of Ukraine takes part in the FAI World Hot Air Balloon Championship near Gross-Siegharts, Austria on August 20, 2018. (Photo by Heinz-Peter Bader/Reuters)
A grizzly bear eats a frozen fruits during a hot summer day at Rio de Janeiro's zoo January 13, 2015. According to a local climate institute, temperatures in Rio de Janeiro on Tuesday rose up to 34 degrees Celsius (93.2 degrees Fahrenheit). (Photo by Sergio Moraes/Reuters)
A swimming pig off the island of Big Major Cay, in the central Bahamas. These amazing pigs swim every day in the crystal clear waters of the Bahamas. They show off their piggy-paddle to visitors who flock to their beach to see the extraordinary site of wild pigs making a splash in the beautiful turquoise sea.
A swimming pig off the island of Big Major Cay, in the central Bahamas. These amazing pigs swim every day in the crystal clear waters of the Bahamas. They show off their piggy-paddle to visitors who flock to their beach to see the extraordinary site of wild pigs making a splash in the beautiful turquoise sea.
Hot air balloons are prepared for a flight as others take off during an international hot air balloon festival at Maayan Harod National park in northern Israel September 30, 2015. (Photo by Baz Ratner/Reuters)
Japanese macaques are relaxed in an outdoor hot spring bath at Hakodate Tropical Botanical Garden on December 1, 2016 in Hakodate, Hokkaido, Japan. The garden offers the hot spring treatment to macaques until May next year. (Photo by The Asahi Shimbun via Getty Images)