Lemur of mouse lemurs, the gray mouse lemur ("M. murinus"), golden-brown mouse lemur ("M. ravelobensis"), and Goodman's mouse lemur ("M. lehilahytsara") were considered the same species until recently, when genetic tests identified them as cryptic species. The lemur dentition is heterodont (having multiple tooth morphologies) and derives from an ancestral primate permanent dentition of . Indriids, sportive lemurs, the aye-aye, and the extinct sloth lemurs, monkey lemurs, and koala lemurs have reduced dentitions, having lost incisors, canines, or premolars. The ancestral deciduous dentition is , but young indriids, aye-ayes, koala lemurs, sloth lemurs, and probably monkey lemurs have fewer deciduous teeth.
What What (In the Butt) What What (In the Butt) "What What (In the Butt)" is a viral video created by Andrew Swant and Bobby Ciraldo for the song of the same name by Samwell. It is known for its numerous camp references to homosexuality and anal sex. The lyrics of the song, a production of Mike Stasny, mostly revolve around the title. The video was made in Milwaukee, Wisconsin and uploaded on Valentine's Day 2007 to YouTube. As of March 2016, the video had over 60 million views. On 5 March 2007, with regard to the Christian imagery in the video, Samwell said, in