Donkeys helped build America and now many of them are being abused, abandoned and neglected. Top 10 CNN Hero Mark Meyers and Peaceful Valley Donkey Rescue are on a mission to save these animals and they are rescuing them by the thousands. Vote now for CNN Hero of the Year at CNNHeroes.com. | CNN Heroes

The CNN Heroes Legacy Award honors a lifetime commitment to service and an unwavering dedication to making the world a better place. Anderson Cooper shares a look back at CNN Heroes Legacy honoree Robert Redford’s longtime advocacy for the planet through activism, storytelling, and decades of public engagement. #CNNHeroes #RobertRedford | CNN Heroes