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Why didn't one of their sisters become a general in the British or Indian army? Was that genetic, obviously not since they wouldn't even have got the chance to find out.
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Andre hopes his project will find ways to protect marine animals from the dangers of ocean noise.I'll defend the more boringly obvious answer of "privilege".Īlthough some women get mentioned here, they are outnumbered. The analysis aims to determine the effects that underwater noise is having on these animals. Back in the lab, computers identify the sounds of human activities as well as 26 species of whales and dolphins. His project, LIDO (Listening to the Deep Ocean Environment), collects data at 22 different locations. Scientists believe this noise may also be contributing to the altered behavior of whales.Īmong those researching the effects of noise pollution is Michel Andre, a bioacoustics researcher in Spain who is recording ocean sounds using instruments called hydrophones. The sound blasts can damage the ears of marine animals and cause serious injury. Ships looking for deep-sea oil or gas deposits tow devices called air guns and shoot pulses of sound down to the ocean floor. Seismic surveys also produce loud blasts of sound within the ocean. Navy to stop or reduce using sonar for military training. Research has shown that sonar can cause mass strandings of whales on beaches and alter the feeding behavior of endangered blue whales ( Balaenoptera musculus). Sonar sounds can be as loud as 235 decibels and travel hundreds of miles under water, interfering with whales’ ability to use echolocation. Sonar, like echolocation, works by sending pulses of sound down into the depths of the ocean to bounce off an object and return an echo to the ship, which indicates a location for object. Some of the loudest underwater noise comes from naval sonar devices. These marine mammals rely on echolocation to communicate, navigate, feed, and find mates, and excess noise interferes with their ability to effectively echolocate. Whales and dolphins are particularly impacted by noise pollution. Ships, oil drills, sonar devices, and seismic tests have made the once tranquil marine environment loud and chaotic. Increasing noise is not only affecting animals on land, it is also a growing problem for those that live in the ocean. Noise pollution makes it difficult for them to accomplish these tasks, which affects their ability survive. Animals use sound for a variety of reasons, including to navigate, find food, attract mates, and avoid predators.
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Studies have shown that loud noises cause caterpillars’ hearts to beat faster and bluebirds to have fewer chicks. Noise pollution also impacts the health and well-being of wildlife. Many children who live near noisy airports or streets have been found to suffer from stress and other problems, such as impairments in memory, attention level, and reading skill. These health problems can affect all age groups, especially children. Exposure to loud noise can also cause high blood pressure, heart disease, sleep disturbances, and stress.
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The most common health problem it causes is Noise Induced Hearing Loss (NIHL). Noise pollution impacts millions of people on a daily basis. Sound sources that exceed this threshold include familiar things, such as power lawn mowers (90 decibels), subway trains (90 to 115 decibels), and loud rock concerts (110 to 120 decibels). Sounds that reach 85 decibels or higher can harm a person’s ears. There are many sounds in the environment, from rustling leaves (20 to 30 decibels) to a thunderclap (120 decibels) to the wail of a siren (120 to 140 decibels). Noise pollution is considered to be any unwanted or disturbing sound that affects the health and well-being of humans and other organisms. It cannot be seen, but it is present nonetheless, both on land and under the sea.