Ann Arbor, Michigan
Domestic dogs, border collies (Canis lupus familiaris). Adult dog displays the "merle" trait, a gene that differentially expresses the underlying black hair pigment gene. Juvenile dog is 6 months old and expresses classic black and white border collie markings.
Tanya Dewey (photographer; copyright holder; identification), Animal Diversity Web
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.
Help us improve the site by taking our survey.
To cite this page: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2018. The Animal Diversity Web (online). Accessed at https://animaldiversity.org.
Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.