This website started as a small project. We were playing around with the idea of making new animals by switching their parts, and the result was Switch Zoo. At first, the zoo had just nine animals, and it was the only attraction on the website. Today, Switch Zoo has 142 species, and the website features additional animal games, music created from animal voices, a reference section about all the animals in Switch Zoo, lesson plans, and poetry, stories and artwork created by students and other visitors.
* Note: The above text comes directly from their website.