We play a lot of games in my house. My son is three, and I was getting pretty tired of Chutes and Ladders and Cooties. He loves animals so I put together a quick card game about collecting a herd of animals and leading them back to a zoo to score points. Players need to tempt herbivores out of hiding with berries, and keep predators from eating their herbivores by sating them with salmon. We're still tweaking it, but it's a pretty nice, light game we all enjoy.