The molecular and geographical evidence suggests chimpanzees as our closest relatives; the orangutan argument is built primarily from shared morphological traits. In either case, what we have are competing hypotheses, neither of which has been definitively falsified as of now.
It's an important issue in human evolution, but that didn't stop The Daily Show with Jon Stewart from tackling it. Enjoy!
|The Daily Show With Jon Stewart||Mon - Thurs 11p / 10c|
|Human's Closest Relative|