the secretecho on Instagram: "In 2001, Robin Williams visited Koko, the famous gorilla known for using sign language, at The Gorilla Foundation in California. Koko had been grieving and unresponsive for six months after the death of her close gorilla companion, Michael. During their encounter, Williams gently interacted with her—playing, tickling, and even letting her try on his glasses—which led to an extraordinary moment: Koko began smiling and laughing again for the first time since her loss.