Jerry Bromenshenk wrote:

> The purpose of the test is for bees to detect and remove dead larvae, not
> to see whether they respond to damage to the cell.

No doubt you have thought of this one (!) - but is there any possibility
that freezing the cappings with liquid nitrogen alters them in some way that
is then detected by the bees, causing them to remove them - and they then
find the dead larvae?

Peter Edwards
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