Humans and animals have different hearing ranges, with humans able to hear between 20 and 20,000 Hz. Audiograms and audiometry tests are used to measure hearing. Dogs have a wider range of hearing than humans, while mice can communicate via sounds inaudible to humans. Dolphins communicate differently than other marine mammals. Hearing range refers to […]
Children from higher-income families hear more words, which can affect their language skills. By age 3, children of professionals hear 50% more words than working-class children and at least three times more than assisted children. Low-income parents may have less time and resources to devote to their children. Children who hear more words perform better […]
