Governments are seeking to curb donkey skin exports to China, where demand for traditional medicine and other products is threatening animals that rural households need.
Animal welfare authorities say the animals were being illegally held and included a South American ostrich, a giant African snail, two prairie dogs and an endangered tiger salamander.
On the outskirts of Mexico City, biologists are working to reintroduce a treasured amphibian to the wild. But first they must revive an ancient method of farming.