Dogs can sense earthquakes because hearing dogs can hear the high-frequency sounds made by friction and rupture in the rocks that occur before an earthquake occurs. Another evidence of this finding is that collapsed-ear dogs are not as responsive as pointed-ear dogs because collapsed ears tend to block high-frequency sounds from entering the ear. The study also found that dogs with small heads are more responsive than dogs with large heads, just as elephants are sensitive to low frequencies while rats are sensitive to high frequencies. Why do dogs get upset when they hear the sound of rubbing and cracking rocks underground? Do they know the meaning of these sounds? Do they know that danger is imminent? Dogs do not know the answers to these questions, they just hear the sound of a screw crawling in the distance, only to avoid it. Dogs rely on the sensitivity of organs can feel the difference because the animal body has an extremely complex and sensitive environmental change perception system, such as the dog’s sense of smell of certain gases is 100-10000 times more sensitive than people, and can detect certain odors released from the ground before the earthquake in preference to people; cockroach’s pair of tail whiskers covered with 2000 dense filamentous hairs, the roots of small hairs constitute a The roots of the small hairs form a highly sensitive miniature “seismograph” that can not only feel the intensity of the vibration, but also feel where the pressure is coming from.
Some animals do react abnormally to earthquakes, but there is not necessarily a one-to-one relationship between “animal reaction” and “occurrence of earthquakes”. Because the overall monitoring environment is now much more complex than it was decades ago, electromagnetic interference, climate change, and biological habits can also cause animals to “misjudge” earthquakes, so relying on animals to predict earthquakes is only a reference, and simply using animal responses to “correspond” to earthquakes is not appropriate. It is not appropriate to use the animal’s reaction to “correspond” to an earthquake. And the characteristics of the dog also determines that it will not only react abnormally in the event of an earthquake or natural disaster, as long as the sound is different dogs will respond to it, can be large or small, so that the dog to predict the earthquake is not absolute. The relationship between the earthquake level and the response made by the dog pre-earthquake animal anomalies and the relationship between the earthquake level: As the earthquake magnitude increases, the type, number, distribution area and the intensity of the response of animal anomalies have a corresponding increase. Generally speaking, before an earthquake of magnitude 3 or so, individual animals show abnormal reactions. before an earthquake of magnitude 5 or so, within a certain area, common animals show more obvious abnormalities. before a strong earthquake of magnitude 7 or so, within a larger area, many animals show a large number of strong abnormalities. The relationship between the distribution of abnormal animal responses and intensity is obvious. The higher the intensity of the area, the greater the amount of abnormal reactions. Dogs with low IQ will keep barking or turn toward people or toward the sky, and show restlessness, emotional tension, and a desire to escape. Dogs with a slightly higher IQ will make a bark at the owner, want to escape from the house, and will bite the owner to go outside. There is also a dog whimpering, jumping back and forth, picking up puppies from the nest, frenzy, digging and other restlessness.
