

 
The Design of Honeybees' Defense Strategy
Giant hornets
in Japan are perfect enemies for the honeybees of Europe.
30 hornets attacking a hive can exterminate about 30,000 bees
in three hours. But the honeybees are created with a perfect
defense mechanism.
When a hornet discovers a new bee colony, it communicates the news to others
by secreting a special smell. The same odor is also detected
by the honeybees, which start congregating at the entrance
of the beehive for defense. When a hornet draws near, approximately
500 honeybees immediately surround it. They start vibrating
their bodies and increase their body temperatures. This, to
the wasp, feels like being stuck in an oven and at the end
of this the wasp dies. In the heat sensitive photograph of
such an attack, the temperature of the white areas can reach
1180F (480C). Such a high temperature is bearable for honeybees
but lethal to the hornets.
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