Yes, Wildlife Tycoon: Venture Africa is a "tycoon" game--but quite different from others of the genre. The objective isn't to build a business, but a balanced ecosystem. For example, one level's objective is to have some number of lions in play--but to get that many, you have to build up your zebra population so there's enough prey to support your lions. And to support that many zebra, you need to plant enough bushes to sustain them.
Yet it also isn't a hard-core simulation in the style of Sim Life (and thank goodness); it's a simple, straightforward game with pleasantly animated African wildlife, and a tutorial system that anyone who can read (and this is a good game for kids) will find good and sufficient. Contrariwise, it's a tougher game to win, even on "Easy" setting, than most casual games (many of which can be won by a monkey clicking randomly).