Zoological parks

In this Oct. 5, 2019, photo released by the Department of National Parks, two elephants are seen stuck on the edge of the Haew Narok Waterfall in Khao Yai National Park, Nakhon Nayok, central Thailand. A herd of wild elephants was swept away by raging waters in Thailand's national park, drowning six, while rangers helped steer two animals out of a deep ravine. (Department of National Parks via AP)

In this Sept. 16, 2019 photo, the orangutan Sandra stands in her enclosure at the former city zoo now known as Eco Parque, in Buenos Aires, Argentina. The solitary life of the 33-year-old orangutan with will take a turn towards the end of September when she leaves Buenos Aires for the United States, where after a quarantine period in Kansas she is expected to become the new resident of the Center for Great Apes in Florida. (AP Photo/Natacha Pisarenko)

Kiki a red panda is seen in the pandas' outdoor exhibit at the Milwaukee County Zoo Sept. 20, 2019, in Milwaukee. Kiki was born in June and is the second cub for mother, Dr. Erin Curry and father, Dash. Red pandas are considered to be endangered due to deforestation, poaching and trapping. (AP Photo/Carrie Antlfinger)

This photo provide by the Berlin Zoo on Monday, Sept. 2, 2019, shows the newborn panda twins during their first care at the zoo after they are born. Female Panda Meng Meng gave birth to two panda babies in Berlin Zoo on Saturday evening Aug. 31, 2019. (Zoo Berlin/Zoologischer Garten Berlin via AP)

In this photo taken August 25, 2012 a herd of elephants in the Kruger National Park, South Africa. A CITES (Convention on International Trade in Endangered Species) conference being held in Geneva, Switzerland, Tuesday Aug. 27, 2019, is expected to decide later Tuesday weather to allow the capture of wild African elephants for export beyond Africa, with U.S. and Europe campaigning against the practice and with nations like China, Zimbabwe, and Botswana pressing to allow the trade. (AP Photo/Kevin Andreson)

FILE -- In this Friday, April 5, 2019 file photo taken trough a window female panda Meng Meng eats bamboo at its enclosure at the zoo in Berlin, Germany. Berlin's zoo is hoping to hear the patter of tiny panda paws soon. The zoo posted on Facebook a few seconds of footage from an ultrasound scan Tuesday of its 6-year-old Meng Meng, which it said shows 'a mini-panda with its heart beating fast'. (AP Photo/Michael Sohn, file)

Florida alligator expert Frank Robb holds an alligator during a news conference, Tuesday, July 16, 2019, in Chicago. Robb captured the elusive alligator in a public lagoon at Humboldt Park early Tuesday. (AP Photo/Amr Alfiky)