What Has Ears But Cannot Hear
It’s a scary world out there. With so much horrific information in the digital news these days, it’s hard to decide where to look first. Then you come across an article that is both insightful and intriguing – like this one. Find out what you thought before clicking. Let’s explore what has ears but cannot hear by reading further!
There are many creatures out there that have ears but cannot hear. These creatures have some other sense that helps them to stay safe and survive. Some of these creatures include sharks, seals, and bats. Each of these animals has a different way of staying alive and avoiding danger. Sharks are notorious for eating other fish and other sea creatures. They use their sense of smell to find their prey. Seals can see below the water surface and can detect things down to a very small distance. Bats use echolocation to find food, migrate, and hibernate. Each animal has its own unique way of staying safe and avoiding danger.
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Study Shows that the Way Children Listen Changes Later in Life
According to research by the University of Portsmouth and the University of Birmingham, how children listen to changes as they grow older. The study found that the way children listen in early childhood is linked to their academic achievement later in life. However, this relationship disappears by the time they reach early adolescence.
The researchers suggest that this lack of correlation could be down to socialising factors. “It is possible that children’s listening behaviour is shaped not only by their individual characteristics but also by their exposure to different social behaviours and networks,” said Dr Clare Haynes from the University of Portsmouth’s School of Psychology. The findings have been published in Developmental Science.
Intensity of Sound be Translated into the Strength of the Signal
The question of how loud a sound needs to be in order to be heard has puzzled scientists for centuries. A 2011 study by researchers at the University of California, Irvine, suggested that there is indeed a threshold below which sound cannot be perceived by the human ear. The researchers concluded that the intensity of a sound must exceed 153 dB to be heard by humans.
While this research provides an interesting insight into how humans process sound, it does not answer the question of how strong a signal needs to be in order to be heard. In order to find out, scientists have turned to hear aids—devices that allow those who are deaf or have impaired hearing to hear sounds with greater clarity. Hearing aids can amplify sounds up to five times their original strength, so scientists can measure the level of amplification required in order to reach a person’s threshold of audibility.
So far, research has shown that the amplitude (power) of a sound must exceed 191 dB in order for a person with normal hearing to perceive it as loudly as someone who is deaf or has impaired hearing. This suggests that we may need to start using louder sounds if we want people with impaired hearing to enjoy life more fully.
Causes and Consequences of Temporary Hearing Loss
When somebody has Temporary Hearing Loss, their ears don’t work the way they’re supposed to. This can cause problems with everything from understanding conversations to hearing alarms. There are two types of hearing loss. One is acute, which is temporary and results in a few days of trouble. The other type is chronic, which lasts for a longer period of time and may require more extensive treatment. Here are some of the most common causes and consequences of Temporary Hearing Loss.
The most common causes of Temporary Hearing Loss are Otitis Media (inflammation of the middle ear), Accident Trauma, Meniere’s Disease (a condition that makes it hard to hear), Ménière’s Syndrome, and Vestibular Neuritis (inflammation or infection of the sensory nerve that goes from the inner ear to the brain).
Acute hearing loss typically results from an infection or an accident, such as getting hit on the head. Most cases of acute hearing loss last only a few days. However, they can seriously affect your ability to communicate and hear alarms. Chronic hearing loss can result from any number of factors like aging, noise exposure, birth defects etc.
Humans are unique in that we possess two sets of ear canals – one on each side of our head. These ear canals allow us to hear high and low frequencies, respectively. However, because bats lack these ear canals, they are able to detect frequency ranges that humans cannot. Such as infrasound (below audible range), which is essential for finding food and navigating their environment! However, surprisingly there are species that have ears but cannot hear.