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.
I Should Have Known Better (Jim Diamond song) I Should Have Known Better (Jim Diamond song) "I Should Have Known Better" was a UK number one single for one week in December 1984 for Jim Diamond. The song was displaced after one week by Frankie Goes to Hollywood's song "The Power of Love". Diamond publicly requested that people not buy his single, but instead buy "Do They Know It's Christmas?" "I Should Have Known Better" was re-recorded for Diamond's 1993 solo album "Jim Diamond". He recorded the song a third time for his 2005 single "Blue Shoes", which also featured a re-recording of "I Won't Let You Down"