Highlights•We studied leadership during collective movements in European
bison.•Leadership is distributed but adult females have a greater influence.•The success of …

Using social groups (ie schools) of the tropical damselfish Chromis viridis, we test how
familiarity through repeated social interactions influences fast-start responses, the primary …

Collective intelligence refers to the ability of groups to outperform individual decision-
makers. At present, relatively little is known about the mechanisms promoting collective …

Collective intelligence refers to the ability of groups to outperform individuals in solving
cognitive tasks. Although numerous studies have demonstrated this effect, the mechanisms …

Joint action research explores how multiple humans can coordinate their movements to
achieve common goals. When there is uncertainty about the joint goal, individuals need to …

Collective decision-making is ubiquitous, and majority-voting and the Condorcet Jury
Theorem pervade thinking about collective decision-making. Thus, it is typically assumed …

The ability to learn from others (social learning) is often deemed a cause of human species
success. But if social learning is indeed more efficient (whether less costly or more accurate) …

Groups of social organisms in nature are resilient systems that can overcome unpredicted
threats by hel** its members. These social organisms are assumed to behave both …

Trophically transmitted parasites frequently increase their hosts' risk-taking behaviour, to
facilitate transmission to the next host. Whether such elevated risk-taking can spill over to …

Signals play a key role in the ecology and evolution of animal populations, influencing
processes such as sexual selection and conflict resolution. In many species, sexually …