Here is an interesting twist on Tycoon it is Zoo Tycoon. It offers similiar issues as the other tycoons but the unpredictability of animals. It interested me based on it's Genre. The PC game site had the following review:
Zoo Tycoon's premise is straightforward enough: A zoo-themed strategy game in which you balance the delicate weights of profit with the well being of living creatures to meet your end goal of building and maintaining a successful zoo. But you'll realize how easy you had it building trains, airlines, roller coasters, and theme parks once you face the task of tending to a giraffe who doesn't like his mate or making saltwater crocodile number two--who doesn't like his water lily--happy, and all the while, patrons are screaming for more trash cans and complaining about the admission price.
If you would like more information go to the following PC Game site.