This hazel dormouse is being given a once-over by a disease risk team at ZSL London Zoo, UK in May 2025, as part of reintroduction programme. (Photo by David Levene/The Guardian)

A gaggle of goslings huddle together under the protective wing of a parent along the bank of the Deschutes River as a heavy downpour passes through Bend, Oregon, late Wednesday, April, 20, 2106 afternoon. (Photo by Ryan Brennecke/The Bulletin via AP Photo)

Two miniature pigs, Brad Pigg and Gordon Hamsey, train for racing season at Monk Park Farm near Thirsk, North Yorkshire, UK on March 18, 2025. (Photo by James Glossop/Times Media Ltd)

Opossums on their mothers back at a game reserve in Central Minnesota, USA, on September 2, 2013. (Photo by Caters News Agency)

Rocky the cat's recovery from a nerve condition in his legs is coming along swimmingly – thanks to regular hydrotherapy sessions at a 20ft-long swimming pool in United Kingdom in the second decade of March 2022. The two-year-old wears a life vest to help keep him afloat and needs a plastic toy to lure him from one end of the pool to the other. (Photo by Max Willcock/BNPS Press Agency)

A common kingfisher sits on a branch of a tree after catching an insect in Allahabad, India, Sunday, July 9, 2017. The common kingfisher is a highly territorial bird that has to eat nearly sixty percent of its bodyweight every day. (Photo by Rajesh Kumar Singh/AP Photo)

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)

A young chimpanzee reacts on a pirogue with Rohmay Ndoulek, from the Papaye International association, during an outing in the Douala-Edea Natural Park in Marienberg on December 15, 2024. In the heart of Douala-Edea Natural Park, dedicated Cameroonian caretakers tend to and rehabilitate chimpanzees, victims of poaching and deforestation, at Papaye International, a sanctuary dubbed a “monkey paradise”. Founded in 2001, the association funded by 30 million friends and the Brigitte Bardot Foundation regularly receives eco-volunteers from all over the world. (Photo by Daniel Beloumou Olomo/AFP Photo)