Human noise disrupts animals' ability to use scents

Biologists from the University of Bristol have demonstrated that human-generated noise is detrimental to animals, disrupting their ability to use scents, which puts them at risk from predators. Scientists studied pygmy mongooses (small predatory mammals) in the field. The experiment showed that road traffic noise negatively affected the mammals' ability to detect threats. The animals gathered less information, analyzed their surroundings less thoroughly, and showed reduced alertness. Urban noise, including road and air traffic, adversely affects humans. It causes stress, health problems, poor concentration, and difficulty sleeping. There's now more evidence that it also negatively impacts many animal species, including birds, fish, mammals, and insects. One researcher explains that noise masks valuable acoustic data. Furthermore, the ability to utilize olfactory information is also impaired. Information gathered through various senses becomes less precise.