Tuesday, July 19, 2011
yobyts Hot Blog - Understand Your Dog�s Senses � Hearing ...
yobyts Hot Blog - Understand Your Dog�s Senses � Hearing ...
Understand Your Dog’s Senses – Hearing
The sense of hearing may be considered as the second most powerful sense of a dog, albeit smell being the first.
A dog has a very good sense of hearing and is far better than humans. They can hear about 4 times the range of humans and they can hear frequencies twice that of humans. A sound you hear at 20 meters can be detected by a dog at 80 meters. Dogs can hear higher pitched sounds that humans cannot hear. The frequency range that dogs can detect is about 6 67-45,000 hz as compared to humans with the range of 64-23,000 hz. Dogs can hear frequencies, such as ultrasounds which are beyond a human’s capabilities. When dogs bark with no apparent reasons, it is possible that they hear sounds which we are unaware of and their barking is meant to protect their territory from a foreign presence. We end up hushing the dogs without realizing their intentions. It is also possible that they are responding to an ultrasound that we cannot hear.
Dog whistles are intended for the dog’s hearing. Its pitches cannot be heard by humans but it is audible and distinct to the dog. Trainers use dog whistles to teach the dog to perform certain actions. Dogs perceive the height and depth of the sounds and react accordingly. Trainers use this ability to teach dogs different commands based on the varying ultrasounds that the whistle emits. Dogs are capable of picking out specific sounds from other sounds that may be going on simultaneously. A dog can be sitting down in your living room and your stereo and television may be blaring out loud and they will still be able to detect unusual sounds from other distant locations around your house. They can synchronize what they want to hear. Dogs, like most wild animals, are sensitive to complete silence and they recognize this as a sign of impending disaster or major threat.
The dog’s ears are especially designed, having about 17 or more muscles in their ears, as compared to our 6-9 muscles. The added muscle provides mobility to their ears and act similar to radar. They can pinpoint the exact source of the sound, identify the sound, make some judgment with regards to the sound and establish whether the sound is threatening. Dogs with perked straight ears can hear better than dogs with hanging drooping ears. Once they pick up a distant sound, you will notice their ears stand to attention and move around in different directions until they can locate where the sound is coming from and the nature of the sound.
A dog’s hearing will start failing as they grow older. An old dog will have less hearing capabilities than a young one and given substantial age, can become deaf eventually. Some dogs can feel impending natural disasters, such as earthquakes, days before it happens. There appears to be no conclusive proof on how the dogs are able to sense it. Some speculate that it may be the high frequency waves coming from the earth or through the air, or even possibly vibrations from the ground. Keep a close observation on your dogs and they may help you predict and prepare for potential calamities.
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