9. The Elephant in the Room

In the trade they call elephants Charismatic Mega Fauna -- huge majestic animals that help the industry draw millions of people each year. The fact is that Zoos and Aquariums are big business, generating more revenue than all professional sports leagues in the U.S. and Canada combined, according to industry insiders. Yet all is not well with the gentle giants in Canadian zoos. A heated controversy has erupted over what to do with zoo elephants when they are ready to retire.