Scientists from the University of Lethazha in Canada and the University of Flinders in Australia have found that Luni, a group of daily hunting birds, had anatomical hearing characteristics of the owls. This discovery questiones the previous ideas that only owls can localize the hunt correctly. Published in İş Magazine Anatomy Magazine (JA).
The team was found in the Australian spotted moon, the unusual features of the ears and brain structures, which were previously considered unique for the owls.
Sarah The graduate student Sarah Citron said, “For a long time, the ability to correct the sound source correctly was believed to be only the“ privilege of the owls. But we found that Luni developed similar adaptations, ”he said.
Unlike other hawks, Luni is not only with the help of the vision. They patrol in the region on the “fourth flight – – while a beak is directed on the grass, they also listen to hunt and look for hunting.
The researchers examined the anatomy of the skull of Luni and Luni and other hawks like a eagle made with wedge. Luni, like owls, increased the auditory holes and two parts responsible for determining the sound direction of the brain – they allow you to calculate with great accuracy where the sound comes from.
“If the sound comes to both ears at the same time, if there is a delay, the brain” understands “,” if there is a delay, “said Vera Weisbeker, Professor of Finders University.
These features make Luni sensitive to sounds that can explain their successful prey, especially in the bush. However, unlike the owls, Luni does not have other specific features – for example, asymmetric ears that limit hunting times.
However, this discovery is a living example of convergent evolution: when unpredictable species create similar characteristics under the influence of the same environmental conditions.
Scientists hope that more work on bird’s anatomy will not only better understand their behavior, but also help to protect the species subject to threats. For example, Luni’s dependence on hearing makes them vulnerable to noise pollution, which may be one of the reasons for the decrease in the North American population.
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Source: Gazeta
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