Shetland sheepdogs illustrate within-breed body size variation. (IMAGE)

Proceedings of the National Academy of Sciences

Shetland sheepdogs illustrate within-breed body size variation.

Caption

Shetland sheepdogs illustrate within-breed body size variation.

Credit

Image credit: Nancy Ager (photographer)

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.