Figure 1.

Technology is changing our view of collective behaviour, offering a variety of different perspectives on animal movement and interactions. High-resolution satellite imaging, fixed-wing or multicopter photography allows imaging groups of animals as they move across the landscape or migrate great distances. Stationary or semi-stationary imaging techniques allow high-definition tracking of large groups, potentially in three dimensions, using standard cameras, imaging sonar or infrared cameras. Bio-logging tags that sample location, behaviour, activity, or interactions with conspecifics provide a continuous stream of data from tagged individuals, even in otherwise inaccessible locations or when moving across large distances.