At the Barcelona Zoo, special care is now given to older animals, including Susi and Bully, two elderly African elephants. This change started in recent decades as zoos around the world shifted their purpose from simply showing animals to focusing on conservation and education. As a result, many zoos now provide better living conditions, including larger spaces and improved medical care. In December, the zoo lost Yoyo, a 54-year-old elephant who had been close to Susi and Bully. After her death, the zoo partnered with the University of Barcelona to study how grief affects elephants that are not related — a study that had never been done before.

Many animals, especially those from circuses or long-term captivity, cannot return to the wild. Because of this, zoos are developing programs that meet the special needs of aging animals. These programs include regular health checks, arthritis treatments, and soft foods for animals without teeth. The Barcelona Zoo also uses sand-covered floors to reduce stress on joints and gives its senior elephants daily foot care. Experts from the World Association of Zoos and Aquariums explained that better veterinary care has helped animals live longer, so age-specific care is now essential. Similar programs are being used in zoos in cities like Baltimore and Baton Rouge, showing a stronger focus on giving older animals proper and respectful care.