One Wormy World

Around 4,000 years ago, on the wind-swept island of St. Kilda, Scotland, people started creating food storage of sorts. They moved a population of sheep to the island, likely as a backup food resource for when times were tough. Little did they know that their actions would affect 21st-century science. Today, rather than ending up as a meal, sheep from this isolated population are the subjects of research on immune function. Evolutionary ecologist Andrea Graham takes Dr. Biology on a trip of exploration through the dangerous cliffs, windy conditions, and wormy world that the Soay sheep deal with on St. Kilda. If you have not already, please subscribe to the podcast so you can be notified about new episodes.