When a snake bit Lolo, one of 62 chimpanzees Humane Society International cares for in Liberia, sanctuary director and veterinarian Richard Ssuna gave him antibiotics and pain medicine hidden in rice balls. Lolo lives on one of six mangrove islands where animals were retired from research starting...

Fur factory farms and trappers kill millions of animals each year using brutal methods just for their fur. With your help, the Humane Society of the United States is fighting back—and winning—with brands, cities and countries moving away from fur. But to make progress, we need you. There are five...