Originally posted by Ramin_Raptor@Aug 3 2005, 01:41 PM
Well yes and no. Some challenges gets u new animals other are very annoying and u don't have to do them if u don't want to.
You mean the challenge gives your zoo a new animal right? You cannot unlock any new species by winning challenges.
@ KillerPenguin - if you already have the safari/jungle themes unlocked and your bar is filled, it is up to you if you want to continue. It would be a great achievement if you could win every challenge (or as many as possible) in one zoo.
Edit: Not sure what all the challenges are though, but
this article has a list of all the photo challenges there are.