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.
Illyrian deciduous forests Illyrian deciduous forests The Illyrian deciduous forests form a terrestrial ecoregion of Europe according to both the WWF and Digital Map of European Ecological Regions by the European Environment Agency. It belongs to the biome of Mediterranean forests, woodlands, and scrub, and to the Palearctic ecozone. The Illyrian deciduous forests stretch along the eastern coast of the Ionian and Adriatic Seas (including the islands) and occupy in Northern Greece, Albania, Montenegro, Bosnia and Herzegovina, Croatia, Slovenia and Northern Italy near Trieste. The ecoregion is surrounded by the Aegean and Western Turkey sclerophyllous and mixed forests (in Greece), Pindus Mountains mixed