Elevateshift on Instagram: "Koko was a western lowland gorilla known around the world for her ability to understand and use sign language. She had a deep bond with another gorilla named Michael, her lifelong companion. When Michael passed away, Koko fell into a deep depression. She stopped playing. Stopped smiling. Stopped signing. For six months, she barely expressed any joy. Then, in 2001, Robin Williams walked into her life. Known for his boundless humor and heart, Robin was invited to meet K