Update: Lots of stuff has happened since I wrote this post: see here for more.
A major scandal looks to be in progress involving Harvard Professor Marc Hauser, a psychologist and popular author whose research on the minds of chimpanzees and other primates is well-known and highly respected. The Boston Globehas the scoop and it's well worth a read (though you should avoid reading the comments if you react badly to stupid.)
Hauser's built his career on detailed studies of the cognitive abilities of non-human primates. He's generally argued that our closest relatives are smarter than people had previously believed, with major implications for evolutionary psychology. Now one of his papers has been retracted, another has been "corrected" and a third is under scrutiny. Hauser has also announced that he's taking a year off from his position at Harvard.
It's not clear what exactly is going on, but the problems ...