Colugos: Obscure mammals glide into the evolutionary limelight

Abstract

Substantial molecular evidence indicates that tree-shrews, colugos and primates cluster together on the mammalian phylogenetic tree. Previously, a sister-group relationship between colugos and primates seemed likely. A new study of colugo chromosomes indicates instead an affinity between colugos and tree-shrews. © 2008 BioMed Central Ltd.