Argentina's Francisco Cerundolo falls as he plays against Germany's Alexander Zverev during a Davis Cup quarterfinal singles tennis match between Germany and Argentina, in Bologna, Italy, Thursday, November 20, 2025. (Photo by Luca Bruno/AP Photo)

A quartet of showgirls in costume sit at an outdoor table and drink from mugs at Disneyland amusement park, Anaheim, California, 1955. (Photo by Loomis Dean/The LIFE Picture Collection/Getty Images)

Brazil's team performs in the artistic swimming acrobatic routine final at the Pan American Games in Santiago, Chile, Friday, November 3, 2023. (Photo by Matias Delacroix/AP Photo)

American actress Dakota Johnson at the Red-Carpet World Premiere of Columbia Pictures' MADAME WEB at the Regency Village Westwood Theater on February 12, 2024 in Los Angeles, California. (Photo by Stewart Cook/Getty Images for Sony Pictures)

Madison Chock, top, and Evan Bates, bottom, perform during the ice dance rhythm dance competition at the U.S. figure skating championships Friday, January 24, 2025, in Wichita, Kan. (Photo by Travis Heying/AP Photo)

Shoppers walk past crocodiles for sale at a market in Bata on February 3, 2015. Markets in Equatorial Guinea sell a variety of animals including pangolins, monkeys and crocodiles as food. (Photo by Carl De Souza/AFP Photo)

A photographer could bear-ly believe his eyes when a bear started waving at him. The friendly animal wandered to the front of his enclosure before sitting back in full view of zoo guests. He then lifts his powerful paw and excitedly waves in an almost human-like way at his new audience. The hilarious encounter was captured by keen photographer Andrey Slepnev, 31, while on a trip to Madrid Zoo, Spain on March 24, 2016. (Photo by Andrey Slepnev/Caters News)

Thousands of species of amphibians are endangered and hundreds have already disappeared, but in recent years, a team of scientists and conservationists have re-discovered some of these “lost” species and uncovered previously unknown varieties. Here: Miniature glass frog. (Photo by Robin Moore)