1. 1 Henry Wellcome Ancient Biomolecules Centre University of Oxford South Parks Road Oxford OX1 3PS UK
2. 2 Wildlife Conservation Research Unit University of Oxford Tubney House, Abingdon Road Tubney Abingdon OX13 5QL UK nobuyuki.yamaguchi@zoo.ox.ac.uk
3. 3 Department of Zoology Natural History Museum Cromwell Road SW7 5BD UK London