Friday , October 7 2022

Study claims that white-striped paint on the body would protect from the tàvecs – Health and wellness


the zebra He found a cunning to avoid them tàvecs, Covering stripes, a trick that would also work for humans, according to a study published on Wednesday in the magazine Royal Society Open Science.

The stamp of the zebra fascinates scientists for a century and there is a multitude of hypotheses to explain this evolution of the animal, as it would serve to confuse between the shadows of the savannah and the Its vegetation, to annoy the animals during hunting, to control its temperature …

After having studied different assumptions, some US researchers concluded in 2014 that if zebra stray raises it was to protect their species from tse-tse and tweet fly bites.

Abundant in this discovery, Gabor Horvath, a researcher at the Eötvös Loránd University in Budapest, suggested the hypothesis that white bands that sometimes cover some communities in New Guinea, Papua, Africa, and Australia could have a similar effect.

The researcher and his team exposed seeds to avid blood insects to three human-made plastic mannequins "visually equivalent to living models": a dark brown, another dark brown but with white stripes and a last clear beige.

The investigator considered that it was not necessary to expose humans to the bites, since "when the távecs choose their objectives, the most important are the visual referents."

After several weeks of exposure, "our brown human model was 10 times more attractive for tatvecs than the brown striped model," explained to AFP the researcher, adding that " the beix model, which served as a testimonial, attracted twice the tatvices more than the brown-striped model. "

This "anti-smoking" effect would not apply only to white strips, but to any type of reason. According to the researchers, the polarization of light reflected by the human body decreases, making it less "appetizing" for the tàvecs. When the finer and repetitive is the reason, the more effective it is.

For the researcher, even if the people who are adept to paint their bodies do not do it to protect themselves from bites, but for social and cultural reasons, it is about " "An example of evolution of behavior and adaptation to the environment"; as these paintings allow to reduce the risk of transmission of pathogens and dangerous diseases.


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