Waconia, MINNESOTA—On Aug. 10, the Humane Society of the United States attended the Carver County Fair Tiger Encounter exhibit to witness firsthand how the animals were being treated in a show that claims to raise awareness about the plight of tigers in the wild and their rapid rate to extinction...

You’d think it would be easy to persuade people to protect prairie dogs: Not only are they a keystone species, with nine other species directly dependent on them for survival, but they’re also irresistibly cute, with big eyes and big personalities. Yet the personable little rodents often find...

In a quiet corner of Black Beauty Ranch, on a stone plinth beneath a maple tree, there’s an oval etching of a man and a burro. The man is Cleveland Amory, author and founder of the Fund for Animals, and the burro is Friendly, one of the first animals to call the sanctuary home. The two met in 1980...