Koko the chimpanzee has joined the 'golden club' of special seniors at UK's ZSL Whipsnade Zoo. The oldest mammal at the zoo, Koko celebrated her 50th birthday by munching on her favorite snacks. (June 5)
source https://www.usatoday.com/videos/news/nation/2023/06/05/koko-chimpanzee-turns-50/12044389002/
