Are there times when you sit pondering what to do with this cow skull you found out in the field? Well, the answer is this little nook at the zoo. The Nature Exchange, located in the Lacerte Family Children's Zoo, is a trading post for items you find in nature. And that tire in the Trinity doesn't count. From interesting fossil finds to everyday pine cones, you take your items in, the experts educate you on your find and then you get points toward another item in the store. And get this, they are so committed to the educational value of their program, they won't even take money for their stuff. That's conviction. But before you grab that road kill to tote in, check out their trading guidelines first. Ya gotta draw the line somewhere.