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A hum is a sound made by producing a wordless tone with the mouth closed, forcing the sound to emerge from the nose. To hum is to produce such a sound, often with a melody. It is also associated with thoughtful absorption, 'hmm'. A hum has a particular timbre (or sound quality), usually a monotone or with slightly varying tones.
While the Hum is hypothesized by some to be a form of low frequency tinnitus [7] such as the venous hum, some report it not to be internal, being worse inside their homes than outside; however, others insist that it is equally bad indoors and outdoors. Some people notice the Hum only at home, while others hear it everywhere they go.
Some animals are obligate nasal breathers, wherein the only air for respiration must arrive into the lungs via the nose. This includes rats and mice. Thus, in these animals the distinction between a breath and a sniff is not clear and could be argued to be indistinguishable. [18] (See sniffing in small animals.)
“For example, the mains electric hum, mining, heat pumps, marine traffic, and so on, can often present in ways that can be mistaken for the World Hum. Some people are simply too lazy to do the ...
The post Listen and Find Out Why Giraffes Hum appeared first on A-Z Animals.
Even untrained humans can decipher ape communication, including gestures related to grooming and sex, according to a new study published on Jan. 24 in the journal PLOS Biology.
Almost all vertebrate animals, including mammals, birds, reptiles, amphibians, and even fish, experience yawning. The study of yawning is called chasmology. [5] [6] [7] Yawning (oscitation) most often occurs in adults immediately before and after sleep, during tedious activities and as a result of its contagious quality. [8]
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