Fresh off the release of RollerCoaster Tycoon 3's first expansion pack, the aquatic-themed Soaked!, word comes from http://www.bluesnews.com/cgi-bin/board.pl?action=viewthread&threadid=58631 that Atari and Frontier Developments are working on a safari-themed expansion for the PC game, with a scheduled release date for this fall.
In addition to new rides and features, RollerCoaster Tycoon 3: Wild! will include customizable animal shows and petting zoos, along with new shops, staff members, and park-goers. New gameplay features will let players choreograph animal shows, as well as track down beasts that escape and tranquilize them with dart guns.