Nothing feels more like a summer than a neighborhood barbecue. especially after a sad winter But the nemesis of the summer reunion remains: the groan of mosquito around us ear.
Why are these blood-sucking insects circling around our ears in the first place? And why do they create such annoying rumors?
Michael Riehle, a professor of entomology at the University of Arizona, said: “Most of the murmurs in your ears are just a side effect of the dancing mosquito wings.”[The sound] They don’t have long distances, so you’re most likely to notice them when they fly around your ears.”
Related: Why do some people get bitten by mosquitoes while others don̵7;t?
that lunch lady
The buzz you hear is most likely from a female mosquito. That’s because male and female mosquitoes live very different lives. Males tend to hang out and sip the nectar of flowers. They are less interested in mischievous humans. However, the female must seek blood meal after mating to provide enough energy to produce eggs. In fact, female mosquitoes have specialized equipment for their next victim.
“From a distance [female mosquitoes] It directs the carbon dioxide we exhale as a conical feather out of our bodies,” Riehle told Live Science. “Carbon dioxide spurred female mosquitoes to begin their search for a host by flying back and forth in pursuit of concentrations back to the source.”
In other words, mosquitoes hover around our heads because that’s where we expel the most carbon dioxide.
when she gets close The female mosquito captures zero body heat. and carbon dioxide is directed towards the victim. The female mosquito uses taste sensors on her feet to see if a human or animal has enough blood to touch it to eat her next meal. While some studies suggest that blood type O It’s the best vintage, Riehle remains skeptical. He hasn’t found any credible research on blood types and mosquito interests. But he believes that other factors such as the person genetics and even diet control It also plays a larger role in the “tasty” taste of a person.
Your skin is “providing a unique cocktail scent that is more attractive to some mosquitoes than others,” Riehle says. another study It was found that female mosquitoes were less attracted to men with a greater variety of skin bacteria than men with a greater variety of skin bacteria. These vampires are part of those who wear dark clothes like black.
as the female flies towards the target She beats her wings about 500 times per second at 450 to 500 hertz. This frequency is the treble of the A note, which incidentally is what the band plays before the concert.
Although it sounds like a drone to us. but a song for male mosquitoes In fact, the male with wings hit with a higher frequency Over females, listen to the female’s chilling tone when they are seeking a mate. Riehle likes to demonstrate this effect to his students by sending his tuning fork to A above the female mosquito’s cage. in every test The females wouldn’t respond, he said. The same demonstration over male mosquitoes’ cages swayed their wings as they frantically search for a goddess that creates sweet vibrations.
Although male mosquitoes are crazy about this sound. But humans weren’t thrilled to hear it. But while we are immediately aware of mosquitoes buzzing around our ears, Riehle notes that most mosquitoes are not attractive to us. On the other hand, these bloodsuckers may be more inclined to seek our feet. It’s a sport where odor-emitting bacteria attract mosquitoes. However, most people probably won’t notice the mosquitoes buzzing around their ankles, he said.
A 1996 study in the journal Trends in Parasitology found that female mosquitoes from the genus Anopheleswhich is responsible for sending malaria The parasite attracts bacteria on human feet. This bacteria Brevibacterium beddingIt’s the same kind that gives Limburger cheese its distinctive flavor. A follow-up to the 2013 study in the journal PLOS One Confirm that mosquitoes are actually attracted to Limburger cheese.
in avoiding mosquitoes It’s best to wear light, long clothing, use insect repellent, and avoid mosquito-infested areas (such as wetlands) at dusk and dawn. This is the period when mosquitoes are the most active. Live Science previously reported..
Originally published on Live Science.