Often, when we watch horror films, dogs in the movie bark when ghosts appear. This is based on the belief that dogs can see ghosts and other supernatural beings. This belief is proven by research conducted by biologists from the City University of London.
As reported by Dailymail, the researchers were finally able to reveal the secret behind the ability of animals to see spirits that were not only possessed by dogs. Based on these studies, it is known that some animals have eyes that can see the spectrum of ultraviolet or UV light, which humans do not have this ability.
The ability of animals to see the spectrum of ultraviolet or UV rays is functioning to help these animals to find prey and keep them away from predator attacks. For example, dogs or cats generally remain able to move swiftly without bumping into anything in a minimal or no lightroom, this is because, in these dark conditions, special abilities in the eyes of cats and dogs make them like using infrared glasses that can help them see in the dark.
So what does the ability of animals to see the spectrum of ultraviolet or UV rays have to do with their ability to see supernatural beings? According to ghost hunters, one of the mandatory equipment that must be possessed by ghost hunters is a camera that can capture infrared and ultraviolet light.
Apart from being able to help to see in the dark, this camera will be able to help to capture the presence of ghosts because ghosts and humans have different colors and light when viewed with an infrared camera.
Unfortunately, although scientists have discovered the secret behind the ability of animals to see ghosts, they are still unable to reveal why the human eye cannot see the spectrum of ultraviolet or UV rays such as dogs and cats.
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