Barby Keel is a 90-year-old woman in Sussex, England, who has rescued around 10,000 animals over the past 54 years through her nonprofit Barby Keel Animal Sanctuary. It all began in the 1970s when a soldier stationed in Northern Ireland asked her to care for his dog while he was away. The bond formed so deeply that the dog never left. Soon, she took in another dog. Then, a local group asked her to care for a few cats. Fast forward five decades, and today Barby is responsible for more than 600 animals, including 160 cats, 8 dogs, 16 pigs, 6 horses, 80 rabbits, and 100 chickens. Barby ran the shelter alone for 20 years and now works with dedicated volunteers, and despite surviving cancer three times, she refuses to take a day off. What she is doing is remarkable and you can learn more about it here.