Tag Archives: Hirta

Incredible shrinking sheep

Global warming is leading to a reduction in size of a breed of wild sheep on Hirta, St Kilda. Scientists say milder winters are helping smaller Soay sheep to survive. This goes against classic evolutionary theory which predicts that wild sheep gradually get bigger, as the stronger, larger animals survive into adulthood and reproduce. The researchers found that the local environment had a stronger effect on the animals than the Continue reading Incredible shrinking sheep