#谣零零计划 #
Animals are constantly evolving to adapt to the environment, so their behavior, appearance and form will have their own characteristics.
In general, animals have their own protective colors, such as the color-changing ability of lizards, the color of dead leaves and branches on some insects, and so on.
zebra
Zebras are a common name for the three species of mammals of the genus Equifidae, which live in Africa and have black and white stripes on their bodies. As herbivores, zebras suffer from human misconceptions.
In the past, black and white stripes were thought to be the camouflage color of zebras: in open grasslands and deserts, sunlight or moonlight would reflect different rays of light on them, allowing zebras to merge with their surroundings.
Such a conclusion misled many people, and it was not until later that scientists studied it that people realized the mistake.
Researchers at the University of Calgary in Canada and the University of California, Davis, point out that zebra predators, such as lions and hounds, can easily find zebras in any light.
What is even more helpless is that some predators have "smelled" the direction in which they are before they see the figure of the zebra. That is to say, black and white stripes do not play a camouflage role at all.
Of course, this black and white stripe grows out not only to look good.
As early as 150 years ago, scientists studied the effect of stripes on zebras. One of the effects that can be confirmed is to protect zebras from mosquito bites.
Later, through collaboration, the University of California and European scientists explored the mechanism of zebra stripe anti-mosquito bites. They dressed ordinary horses with striped "vests" of different colors and studied the behavior of the bullflies in the video.
The results showed that in areas covered by black and white striped "vests", cattle flies stayed less frequently. Follow-up studies have found that these stripes do not directly drive away the cattle flies, but overload the "myopic" cattle fly with vision and can only be dizzy when landing.
In addition to preventing mosquito bites, scientists speculate that black and white stripes may have other functions, but other functions (such as body temperature regulation) are not well documented.
Bullflies fall less frequently in black and white stripes than pure white