How the Leopard Gets Its Spots: A Transmembrane Peptidase Specifies Feline Pigmentation Patterns March 2013 in “ Pigment Cell & Melanoma Research ” Ian J. Jackson We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on onlinelibrary.wiley.com →