FRANCE: According to a study published in the journal Science Advances by Martin Banks (a UC Berkeley professor of optometry) in collaboration with the United Kingdom’s Durham University, a new hypothesis has been proposed which states that the pupils have different orientation in different animals. Eyes give insight about an animal whether it is the hunter or the hunted.
Martin Banks, professor of optometry at Berkeley and Gordon Love, director of the Centre for Advanced Instrumentation at Durham explained the importance of vision for animals as they need to see panoramically on the ground to detect their predators and escape from them by running or jumping over obstacles.
It is seen that pupils stay in a horizontal position by rotating up to 50 degrees.
According to a report published in the journal Science Advances, scientists studied 214 different species of animals to determine the relation between ecological niche and the shape of the pupil of an animal.
They concluded that humans can reduce pupils up to 15-folds, cats can fold up to 135-fold, and insectivorous by 300-fold.
Among these group of animals were 65 ambush predators of which 44 had pupils aligned vertically with a binocular vision and around 82% had 42cms of shoulder height that explains their preciseness to judge the distance.
This research clearly revealed the mystery behind the differences in the size of the pupils in short and tall animals and explained how short animals are more precise in judging the distance as compared to the tall animals.
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