COLLECTIVE DECISION MAKING ACROSS SPECIES | Rock ants (magnified, top) dabbed with paint so researchers can track who does what, have evolved a quorum system to cope with the challenges of collectively choosing a home. Other forms of this handy way of balancing the need for independent observation with the logistics of moving or leading in a group have also evolved in fish and primates (middle, bottom).
Log in
Subscribers, enter your e-mail address for full access to the Science News archives and digital editions.
