Scientists have compared the calls, named \u0027antipredator pipes\u0027, to fear screams and panic calls
interactions between giant hornets and Asian honey bees in Vietnam for over seven years, by placing microphones in hives belonging to local beekeepers. The study collected almost 30,000 signals made by the bees over 1,300 minutes of monitoring.
In some cases, scientists observed that the signals prompted the worker bees at the hive’s entrance to go into defence mode, either attacking the scouting hornet by forming a ball around it to heat it to death or spreading animal dung on the hive to repel predators — the first document use of a tool by bees.Article content
Scientists also found ‘striking differences’ in the way the bees responded to two types of predators – the giant hornet which attack in numbers and a smaller hornet species which hunts solitarily. The anti-predator pipes didn’t sound as much as for the latter, suggesting that the response may have been specifically developed for the larger, more dangerous predator.
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