The vast blue sky, and in it hundreds of thousands of birds have taken wing. They make swift turns and move like they are one. Have you ever wondered how big flocks of birds or big schools of fish are formed? Their coordinated movement has fascinated scientists for long. Today, we have some understanding of how such schools or flocks are maintained, and here is a short summary of a recent paper by Pearce et al in PNAS (Role of projection in the control of bird flocks) that proposes a new model to describe flocking in birds. Many animals show … Continue reading Bird flocks – the more the merrier!