I'm not even going to intro this, except to say the tears started at :50.
Found via Misty H., who desribes it as "Wall*E meets National Geographic." :)
UPDATE: The first video was pulled, so I've replaced it with one that's still working for now. In case that also gets pulled, you can watch two of the three "Rollin' Safari" clips at the creator's site here and here.
UPDATE UPDATE: Sorry the vid keeps getting pulled, guys! You'll just have to hit the links to the originating site to see them. To make it up to you, here's the Big Bang Theory Flash Mob everyone's raving about:
(I know, I know, I hate this song too now - but make sure you watch 'til the end! :D)