A brief snippet from BlogCritics review about SimAnimals Africa for the Nintendo Wii:

The game has a strong concept, and with the neat African theme it really should have been better. However, the problem is that it all gets boring very fast.  Even though it is not exceptionally long, one will be tired of the game before reaching the end.  I finished it in only a few hours, and after the millionth time petting the zebras until they liked me, it was, simply put, boring. Everything is repetitious, especially the mini-games because there are really only two of them: a ring toss and a drum jumping game. Both are entertaining the first few times, but not after that.  Perhaps if each animal had their own special mini-game it could have been spaced out better. There are only eight species too which is a real problem, especially considering the rich world of Africa they had to explore. In SimAnimals there were almost too many animals, but at least that never got very boring.

review here