A touching video of a visit by Jan van Hooff to “mama” a 59-year-old chimpanzee at the Royal Burgers Zoo. It’s difficult to watch this video without getting emotional as the reunion between Mama the Chimpanzee and Jan van Hooff will be the last. These two have known each other for over 50 years so saying goodbye isn’t easy for either of them. To see another touching video watch Koko Tickles Robin Williams.