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One study states that yawning occurs when one's blood contains increased amounts of carbon dioxide and therefore becomes in need of the influx of oxygen (or expulsion of carbon dioxide) that a yawn can provide. [20] Yawning may reduce oxygen intake compared to normal respiration; [23] however, the frequency of yawning is not decreased by ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 December 2024. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...
Frogs and toads produce a rich variety of sounds, calls, and songs during their courtship and mating rituals. The callers, usually males, make stereotyped sounds in order to advertise their location, their mating readiness and their willingness to defend their territory; listeners respond to the calls by return calling, by approach, and by going silent.
Since males are too small to grip the female during mating as other frogs do, the male secretes a kind of glue to keep the mating pair together. [3] The stuck-together pair burrow backwards into the soil until they reach the chamber the female has dug 30 cm below the soil surface. There the female lays her eggs.
Frogs can hear both in the air and below water. They do not have external ears; the eardrums (tympanic membranes) are directly exposed or may be covered by a layer of skin and are visible as a circular area just behind the eye. The size and distance apart of the eardrums is related to the frequency and wavelength at which the frog calls.
Yawning often feels involuntary—it’s triggered by the same part of the brain as sneezing, Sullivan says. But the difference is, a yawn can be controlled from “the top down” if you think ...
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It can be between 4 and 6 centimetres (1.6 and 2.4 in) long. Its color is yellowish-brown, and sand often adheres to its skin. [3] Sand sticks to the frogs entire body, excluding the mouth and nose, and can likely be attributed to a type of sticky secretion, as removal of sand from the frog is difficult. [6]