Are there really twice as many bovid species as we thought

Correspondence to be sent to: Department of Biology, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen N, Denmark;E-mail: rheller@bio.ku.dk, rathmuth@gmail.com.R. Heller and P. Frandsen contributed equally to this article.Received 3 December 2012; reviews returned 7 January 2013; accepted 18 January 2013Associate Editor: Frank (Andy) Anderson