The above video is from the Peep and the Big Wide World® series, produced by GBH and 9 Story Entertainment in association with TVOntario. You can check out more PEEP videos here.
Major funding for PEEP and the Big Wide World is provided by the National Science Foundation. This Peep and the Big Wide World material is based upon work supported by the National Science Foundation under Grant No. 0104700. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.