Captive breeding is another method of stabilizing the bog turtles' numbers. The technique involves mating bog turtles indoors in controlled environments, where nutrition and mates are provided. Fred Wustholz and Richard J. Holub were the first to do this independently, during the 1960s and 1970s. They were interested in educating others about the bog turtle and in increasing its population, and over several years they released many healthy bog turtles into the wild. Various organizations, such as the Association of Zoos and Aquariums, have been permitted to breed bog turtles in captivity.