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Dogs communicate with eyes,how do i train my pitbull puppy to sit,train dog not to bark at other dogs,dog vomiting bile and mucus - Tips For You

Category: Dog Training Courses | Author: admin 08.03.2014
A recent study in Japan found that eye shape, iris colour and facial markings in canines are part of an intricate eye-based communication system that humans do not yet fully understand. He found that the species with the most striking eyes tended to live and hunt in groups, where eye-based communication was necessary to bring down large prey. The study found that the species with the most striking eyes tended to live and hunt in groups, where eye-based communication was necessary to bring down large prey.
Siberian huskies evolved colorful, almond-shaped eyes to see in low light, desolate northern regions. Chameleons can rotate and focus their eyes separately to look at two different objects at the same time, according to the San Diego Zoo.
Most animals, including humans, have round pupils, but the eyes of goats (toads, octopi and a few others too) tend to be horizontal and rectangular with rounded corners. Bird eyes, such as those of the eagle seen here, feature oil droplets located in the front, Doekele Stavenga of the University of Groningen and colleagues have discovered. Giant squid have the largest eyes in the world, according to the Smithsonian National Museum of Natural History.
Wolves and dogs can communicate using their eyes alone, suggests a new study in the journal PLoS ONE.
The color of the face around the eye, the eye’s shape and the color and shape of both the iris and the pupil are all part of the elaborate eye-based communication system, according to the research, which could apply to humans as well.


Sayoko Ueda of the Tokyo Institute of Technology and Kyoto University led the study, which compared these characteristics of the face and eyes among 25 different types of canines. They added, “Group-hunting species had significantly lighter iris color (an important factor of gaze-signaling eyes) than those of solo hunting species. Since we’re social mammals too, perhaps we are revealing more about ourselves and our mental states with our eyes than we fully realize.
The color of the face around the eye, the eye's shape and the color and shape of both the iris and the pupil are all part of the complex eye-based communication system, according to the research, which could apply to humans as well. Ueda and his team thereby deduced that these were all adaptive traits which enabled the canines that hunt in packs and live in groups to communicate with one another via gaze signal. Animals like foxes, which exemplify the B-type, however, only rely on their eyes some of the time to exchange information.
And then for the C-type, seen in animals like bush dogs, their all-dark eyes blend in with their faces. Since humans fall into the same category as these ever-watchful canines, it's possible that these findings reveal something about the way we communicate with each other as well. Pictured are areas of the creatures' face that researchers studiedSayoko Ueda of the Tokyo Institute of Technology and Kyoto University led the study, which compared characteristics of the face and eyes among 25 different types of canines. From fish, to dogs, to birds to shrimp, super-eyesight allows them to thrive in places others can't.


Justin Marshall of the University of Queensland and his team found that some shrimp stare down prey before attacking with a movement that is so swift that it actually boils water in front of the shrimp.
Their eyes have a light-reflecting surface, known as the tapetum lucidum, which makes this possible. At up to 10 inches in diameter, the human head-sized eyes help giant squid to see in deep water. As Michael Land of the University of Sussex explains, "To interact with objects in the world we need to know where they are, whether they are in our field of view or outside it. The researchers point out that “various predators camouflage their eyes to increase their hunting success.” Consider that if you don’t know what an individual is looking at, you can’t predict his or her behavior. Group A - which included the grey wolf, coyote, and golden jackal - had irises lighter than their pupils, and faces with markings that made their eyes easy to locate.Group B contained the manned wolf, the dingo and the kit fox. These species only had facial markings that indicate the position of the eyes and the pupils aren’t visible.



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