In the Air

A minimal flocking model shows that a directional change initiated by one agent can propagate across an entire group at approximately constant speed through asymmetric local interactions alone.

Bird flocks achieve coordinated flight through local interactions among individuals rather than a leader directing the group’s movement. In a newly listed Oxford talk, collective-behaviour researcher Steve Portugal brings together biomechanics, physiology and social interaction to explain how birds maintain cohesion, move through complex landscapes and balance aerodynamic costs against social benefits.

Researchers studying Bengalese finches found that learned birdsong develops statistical structure resembling properties of human language. Young birds segment continuous song into recurring chunks by tracking how predictably syllables follow one another, while frequently used chunks become disproportionately common and short.

A new preprint examines how pairs of homing pigeons establish leader and follower roles when navigating with unfamiliar partners. The work matters because it reveals how distributed groups can rapidly settle coordination roles without a central authority or an established social history.

Worcester Polytechnic Institute researchers developed a bat-inspired sensing and navigation system that allows palm-sized drones to move through smoke, fog, and visually degraded environments using ultrasound and lightweight onboard AI.

This paper looks at how robot swarms can move more smoothly by not only reacting to what nearby robots are doing now, but also by briefly predicting where they are about to move next.

If you’re the kind of person who can’t help finishing other peoples’ sentences for them, don’t worry; you can blame it on evolution.