Zoological parks

Fiona, a Nile Hippopotamus, eats her specialty birthday cake to celebrate turning three-years old this Friday, in her enclosure at the Cincinnati Zoo & Botanical Garden, Thursday, Jan. 23, 2020, in Cincinnati. The Cincinnati Zoo is using the third birthday of its beloved premature hippo as a way to raise money for Australian wildlife affected by the recent bushfires. Instead of sending birthday gifts, the zoo is asking people to buy T-shirts that will directly benefit the Bushfire Emergency Wildlife Fund. (AP Photo/John Minchillo)

Firefighters stand in front of the burning monkey house at Krefeld Zoo, in Krefeld, Germnay, Wednesday Jan 1, 2020. A fire at a zoo in western Germany killed a large number of animals in the early hours of the new year, authorities said. (Alexander Forstreuter/dpa via AP)

FILE - In this Oct. 29, 2014, file photo, an outrider waits by the track as horses train for the Breeders' Cup horse races at Santa Anita Park in Arcadia, Calif. An investigation into numerous horse deaths at Santa Anita Park found no criminal wrongdoing but produced a list of recommendations for improving safety at all California racetracks, the Los Angeles County district attorney said in a report Thursday Dec. 19, 2019. (AP Photo/Jae C. Hong, File)

This Nov. 22, 2019 image provided by the ABQ BioPark shows Archer, a Mexican gray wolf that was born in May at the zoo in Albuquerque, New Mexico. The BioPark is among the partners working with the U.S. Fish and Wildlife Service and others to recover the endangered species. (ABQ BioPark via AP)

In this undated photo provided by the Kansas City Zoo, three Macaroni penguin chicks are cared for just days after their birth at the zoo in Kansas City, Kansas. For the first time in the zoo's 110-year history, the zoo is home to Macaroni penguins from eggs provided by SeaWorld San Diego, that hatched eight fluffy chicks in incubators. (Kansas City Zoo via AP)

In this Aug. 2019, photo provided by the Oakland Zoo shows the eldest in Oakland Zoo's African elephant herd, M'Dunda in Oakland, Calif. Zoo officials announced M'Dunda, 50, died Tuesday, Dec. 3, 2019. (Sarah Levintin/Oakland Zoo, via AP)

In this Thursday, Nov. 28, 2019 photo, a giraffe runs in a fire on the grounds at the African Safari Wildlife Park in Port Clinton, Ohio. At least 10 animals have died in a barn fire that erupted at the wildlife park, officials said. (Aaron DiBucci via AP)

In this Sept 25, 2019 handout photo provided by the Fort Worth Zoo, Olaf is held by primary Puerto Rican crested toad zoo keeper Kelsey Barron, at the Fort Worth Zoo, in Fort Worth, Texas. Officials told The Associated Press Friday, Nov. 22, 2019, that Olaf, a critically endangered Puerto Rican toad, is one of more than 300 toads born via in vitro fertilization as U.S. scientists attempt to save it from extinction. (Fort Worth Zoo photo via AP)

Giant panda Bei Bei explores his surroundings on his first day at the Ya'an Bifengxia Base of the Giant Panda Conservation and Research Center in Ya'an in southwestern China's Sichuan Province, Thursday, Nov. 21, 2019. After a transcontinental flight on the "Panda Express," a furry American darling arrived early Thursday in his new Chinese home. The Washington-born giant panda Bei Bei was a beloved figure at the National Zoo, where he spent the first four years of his life. (Chinatopix via AP)