This article was reviewed by Zhao Xumao, a young researcher at Lanzhou University "If you walk under a tree, shit will come from the sky" Have you ever been hit by bird poop? Although the probability of this is very low But bird droppings on cars happen all the time. The car owner can only admit that he is unlucky and has no choice but to bear it. Copyright image, no permission to reprint But have you discovered an interesting phenomenon? The white bird droppings are always seen on black cars And there is black bird shit on the white car Why is this? Let’s take a look together below! It turns out that you can’t blame the bird for this situation. You can only blame the color of your car. In everyone’s perception Shit and urine are separate However, the mixture of bird urine and feces The white part is urine The remaining dark part is bird poop. (Except for ostriches, which excrete feces and urine separately) Copyright image, no permission to reprint The reason why this phenomenon occurs It is derived from the body structure of birds To reduce weight during flight They have no teeth, colon, bladder or urethra. As a result, they can no longer hold their poop and pee, and poop as they eat Flying and pulling In addition, they are used for flying You also need a lot of protein When protein is digested by them, uric acid is produced. Uric acid is slightly soluble in water So it will appear as a white crystal Now, do you understand? The watermarked images and cover images in this article are from the copyright gallery, and the image content is not authorized for reprinting |
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