In 1988, after a decade that saw record sales of animal fur, a representative from the Humane Society of the United States met in Europe with other advocates to plan an end to an industry built on cruelty. Only a year before, the first ladies of the U.S. and what was then the USSR had famously...

Somewhere toward the end of the last ice age, we formed an alliance with wolves: Maybe the ancestors of dogs got food scraps while our own ancestors gained protection from predators and other humans. These social species eventually collaborated on a vast scale, possibly even hunting woolly mammoths...