Physicists have solved a long-standing problem involving systems that appear to violate Newton’s third law, such as bird ...

Flocking birds and schools of fish are a familiar sight. While previous research has uncovered the broad dynamics driving ...

When a flock of birds wheels across the sky, the movement appears effortless. Hundreds of individuals change direction within ...

Birds in flocks, bacteria and cells: In many collective systems, individual elements respond to only part of their ...