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ANIMALS – An ultraviolet sky, a two-tone rainbow and nuances invisible to us: animals don’t always see the same as humans, and scientists wanted to put themselves in their shoes. Using DIY cameras, a group of researchers programmed software to film the angle of view of moving animals to better understand how that angle influences their behavior.
Their findings were published in the journal on Tuesday, January 23rd PLOS biology. As you can see in our video aboveSpecifically, we discover that our white sunscreen is actually yellow fluorescent in a bee’s eyes because it absorbs the ultraviolet light that bees see daily. For a bird, on the other hand, a sky that appears blue to us.” ultraviolet color ». Thanks to an imaging technique called “ wrong colour “, this UV color appears as a kind of magenta to our human eyes.
Unraveling the secret of animal photoreceptors
The fact that animals see the world so differently is mainly due to their photoreceptors. While humans only perceive red, green and blue light and mixtures of these, many animals perceive ultraviolet or infrared light. “ Each animal has a unique set of photoreceptors […] and neither our eyes nor our cameras capture all of these variations in light », explain the researchers and point out a mystery that their software tries to solve.
To achieve this, they developed two cameras, one sensitive to ultraviolet light and the other sensitive to visible light. Then it was their software that “ translated » Videos recorded as quantifiable data to examine the temporal variations of different color signals. An established system that predicts perceived colors with an estimated 92 to 99% accuracy, according to the media Gizmodo. And there’s good news for aspiring nature photographers: the instructions needed for the experiment were published at the same time as the study. On your cameras!
See also further Le HuffPost :
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#camera #colors #bee #bird #fascinating