How many species are there really?
[caption id="attachment_106" align="alignleft" width="281" caption="Cryptic Species: Illustration of genetically, geographically, ecologically and reproductively isolated 'groups' currently classified as the single bryozoan species Celleporella hyalina. From Gomez et al 2007"][/caption] Rod Page at iPhylo draws attention to a new paper in Systematic Biology (Costello et al 2011)...
14 October, 2011