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...

See the difference between cage-free egg production and battery-cage egg production.

Scientists have just begun to scratch the surface when it comes to understanding bird brains. But studies have shown what backyard chicken caregivers already know: The world’s most most intensively farmed animal has remarkable cognitive abilities.