""The bees may
not deliberately heat the cavities, but they warm them enough to draw the
attention of the bees on either side.

Dr Szabos work some decades ago in Northern Alberta with thermistors showed this also,  with 4 hives touching each other and wrapped around the perimter, at times the clusters in each hive aggregated to one big cluster in the centre - just happened to be seperated by wood vs air - heat travels. But I'd clarify, this observation does not require the "cavities" to be heated - the bees loose radiant energy at the cluster mantle, it hits and then warms the wood box, heat is conducted thru the wood to the next box, it radiates from there to the cluster which senses it and moves towards the heat. This would happen even if there was a vacuum around the bees
Greg Hawkins
Everton ON
Sent on the TELUS Mobility network with BlackBerry

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