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.
U Should've Known Better U Should've Known Better "U Should've Known Better" is a song by American recording artist Monica. It was written in collaboration with Harold Lilly and Jermaine Dupri, and produced by the latter along with frequent co-producer Bryan Michael Cox for her original third studio album, "All Eyez on Me" (2002). When the album was shelved for release outside Japan, the song was one out of five original records that were transferred into its new version, "After the Storm" (2003). A contemporary R&B slow jam, "U Should've Known Better" contains elements of soul music and rock music. Built on an pulsating