Human locomotion had been presumed unique because we walk upright with two legs. When investigators led by Nadia Dominici analyzed the electrical activities produced by walking toddlers, preschoolers, and adults as well as newborns that were held upright and prodded to walk along a surface, however, they saw that we essentially follow the same chain of motor commands as several other animals ... More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.