What is a human animal?  If you were a Martian anthropologist, you would probably want to supplement your field studies (at grocery stores, sports events and tupperware parties) with a visit to this website of the Smithsonian National Museum of Natural History.  It is not highly technical, so those of you with children might want to share this site with them.  What it lacks in technical information, it makes up for with a rich collection of videos, images and illustrations of artifacts, behavior and environments.  Lots to click on here!