His name is Ambam, he is an endangered Western lowland gorilla, and he walks upright. Check the videos below of the upright simian, and check this link out for the article from CBS News.
[youtube=http://www.youtube.com/watch?v=CrQf6cogMuI&w=448&h=252&hd=1]<p>
[youtube=http://www.youtube.com/watch?v=kva_HlMk498&w=448&h=252&hd=1]