Some workers do "care" to engage more with other workers, others "prefer" to be more reserved: https://link.springer.com/article/10.1007/s00265-016-2084-4 *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html