In the United States, the deadly hornets from Asia appeared, that measure up to 2 inches long and can wipe out the entire honey bee colonies within hours.
It’s been the very first time that has been spotted in the U.S. And these so-called “murder hornets” also shows a threat to the honeybee population. The hornets-which have been the culprit for 50 deaths a year in Japan also have been spotted in Washington, and according to the New York Times, and it can rip through a hive, killing a bee every 14 seconds.
Against these hornets, an interesting defence was found by researchers that Japanese honeybees have employed against the larger opponent. The bees in Japan have been known to form a ball around the invader and vibrate to produce the heat that essentially can cook a hornet to death. The report finally concludes that these bees can survive in extreme temperatures and ultimately can kill a hornet in an hour.
The Times reported that European honeybees which are common in the United States try to sting the hornet, that also proves futile due to their tough exoskeleton. A researcher told the paper that the Japanese honeybee learned to adapt through generations.