Now that you have read all about the Mexican wild cats and Costa Rican caterpillars, you have a chance to show everyone what you know. (You will need the Flash plug-in to play see the timeline. Click here to get the plug-in.)   The first activity will have you investigate some of the animals in the Mexican ecosystem. Figure out who are the predators and who are their prey and build your own food web. At the end of this activity, you can print a Food Web Certificate of Achievement! The second activity will have you build your own caterpillar. What does a caterpillar need in order to fit into its environment and survive in the Costa Rican rain forest? Build a specialized caterpillar that fits the scene and at the end of the activity, you can print out your creations!