Swifts and Swallows: Convergent Evolution in Action

Swifts and Swallows: Convergent Evolution in Action I live in the Hoedspruit area of Limpopo province of South Africa, and every summer, our skies are full of agile and fast birds flying around picking insects out of the air. In the dying days of our summer, some such as the barn swallow, muster in large […]