When you enter Fossil Rim, it's hard to figure who is really in the zoo: you and the wife and kids, locked up in your SUV, air conditioner running, carbon monoxide emitting, or the 50 species of well-attended animals languishing over 1,500 gently rolling, beautifully wooded acres in the North Texas Hill Country. Located 75 miles southwest of Dallas, no zoo could offer the contact, the closeness, the natural setting that is afforded over 1,000 animals that are free to roam its savannas and juniper-oak woodlands save only the carnivores and rhinos. Humans remain in their vehicles during the two hours that cover the scenic tour. The Fossil Rim mission is one of conservation rather than conquest; its intention is to better establish the balance between man and nature. What better way is there for your screaming 4-year-old to get up close and personal with an ocelot? Just make sure you keep things in balance and take your little creature home.