Workers in a sugar cane field in India came across a leopard cub by itself. They called Wildlife SOS, who had the cub checked out by a veterinarian. Because the cub was healthy, they figured he wasn't really abandoned. Most likely, the cub's mother hid him in the field while she went hunting, not realizing that humans would come and work the plot. One of the biggest threats to leopards is agriculture encroaching on their habitat. So organization volunteers put him back where he was found after the workday was over, hoping that Mom would come and get him. They also left cameras behind, to make sure he was okay. Sure enough, the mother leopard came looking for him!
Notice the difference between how small the cub looks when his mother is around, and how large he looks while being handled by humans.