A humane backyard is a safe haven for wildlife—a space where animals can thrive free from pesticides, trapping and other threats.

Stuffed in a sports bag in Johannesburg, South Africa, the small pangolin was far from her natural environment. She’d been poached from her home and held without food or water for around 10 days, and now she was up for sale. In February 2020, wildlife traffickers brought her to an arranged meeting...