Image: The Livestock ConservancyHow cattle ended up isolated on a remote island in the Gulf of AlaskaGenome-wide testing revealed a rare mixture of Yakut and Hereford ancestryHarsh island conditions may have reshaped the cattle’s genetic architectureWhy the Chirikof cattle became important to conservation scientistsA wildlife refuge faced a difficult decision over the feral herdMore than abandoned cattle, the herd became a record of evolution