AnimalsInsects
Japanese honeybees kill giant hornets by cooking them.
Hundreds pile on in a ball and vibrate until the centre passes 46°C — lethal for the hornet, just survivable for the bees.
Source
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More animal facts
Animal facts are the ones people repeat at dinner. Sharks are older than trees, a headless chicken lived for eighteen months, and vampire bats remember who fed them. Every fact here links to the reference it came from.
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