Hello Predrag & All, Pretty amazing research. If can be proved we will have to update all the beekeeping books! bob > http://www.telegraph.co.uk/earth/wildlife/7435950/Honey-bees-secret-world-of-heat-revealed.html *********************************************** 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 Access BEE-L directly at: http://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=BEE-L