Zoos and circuses in the Western world would continue to use orangutans and other simians as sources for entertainment, training them to behave like humans at tea parties and to perform tricks. Notable orangutan "character actors" include Jacob and Rosa of the Tierpark Hagenbeck in the early 20th century and Jiggs of the San Diego Zoo in the 1930s and 1940s. Animal rights groups have urged a stop to such acts, considering them abusive. Starting in the 1960s, zoos became more concerned with education and orangutans exhibits were designed to mimic their natural environment and displayed their natural behaviours.