The Success of Zoos

Given that 143 million people visit accredited zoos and aquariums each year, the Association of Zoos and Aquariums is entitled to the claim that the association is building North America's largest wildlife conservation movement. Zoos and aquariums are mainstream environmental organizations. Their supporters, some 48 million registered members, are extraordinarily committed to conservation, and AZA zoos and aquariums back up their boast with money, spending some $250 million in 2006 on i,719 c...