A green iguana, or American iguana sits on an Aldabra giant tortoise, the largest tortoise of the world, in their enclosure at the zoo park of Lille, northern France, on February 11, 2019. (Photo by Philippe Huguen/AFP Photo)
This photo taken on December 2, 2023 shows pandas eating inside their enclosure at a zoo in China's southwestern Chongqing municipality. (Photo by AFP Photo/China Stringer Network)
A zoo keeper feeds Diego, a three month old howler monkey, which is reared at Edinburgh Zoo, July 29, 2008 in Scotland. (Photo by Jeff J. Mitchell/Getty Images)