Monday , August 15 2022

Why do steamers have strips? Perhaps to throw insects off


by DANICA KIRKA, The Associated Press

Scientists from the University of Bristol and the University of California in Davis have worn horses in a Zebra style and star coat for part of their research, offering evidence that zebra strips are protected from sucking insects blood that spreads diseases. (University of Bristol and University of California in Davis through AP)

LONDON (AP) – Zebra strips are silent – especially to fly.

That is the conclusion of scientists from the University of Bristol and the University of California in Davis who wore horses in black and white clothes coats to help determine why zebra gets strips.

The researchers found fewer horses growing on the folded horses than on those without the strip coats, suggesting that zebra strips could offer protection against insects that can squeeze blood that can spread disease.

"The ability to reduce this to spin on the zebra coat because of strikes may affect the visual system of the horse insects during their last time," said Martin How, a joint research at the University of Bristol. "Stripes can sweep aviation in some way once they are close enough to see their low resolution eyes."

From a distance, the insects were attracted to both the horses and the zebra, with the same number of insects growing around both types of animals. But when the insects arrived closer, things get discipline. The insects plunged less frequently on the zebra and the horses covered in strip coats.

"Once they come closer to the zebra, however, they tend to fly past or enter them," said Tim Caro, a professor at the University. Davis Wildlife, Fish and Conservation Department. "This suggests that strips can interfere with the abilities of insects to have controlled landing."

The work, which is reported in the Public Library of Science UN magazine, is trying to answer one of the oldest questions in zoology – why do zebraras have strips? Charles Darwin received his theories. So British naturalist Alfred Russel Wallace.

But the British and California scientists tried to explore that question by studying horses and zebra at the British Live Live Hill, working with zoos in Europe on conservation for zebra. That gave a controlled environment where the horses could be worn and carefully viewed to test the theory.

"What we needed to do is get our mind into the eye of the air," says How, an expert on animal vision. "They have very different eyes from us."

As The Press Associated told Thursday there were reasons to be "quite exciting" about the research, which helps scientists understand what is happening in the minds of flying. This has wider implications for technology such as powerless cars, which are inspired by the vision of insects. If strokes are disrupted by air, they may also disrupt car systems without a driver, for example.

But there are also human requests. As he says from now on, he is wearing strips when riding his bike during the season of a horse's flight.

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