Why do animals yawn ? It is observed that of a person is yawninig the other next to him yawns too . Explain
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Answer:
Yawning is an act conducted by the body to signify a low level of oxygen supply to the brain.
Explanation:
It is commonly associated with tiredness, stress, sleepiness, boredom, or even hunger.
In humans, yawning is often triggered by the perception that others are yawning.
For example, seeing a person yawning, or talking to someone on the phone who is yawning.
This is a typical example of positive feedback.
This "contagious" yawning has also been observed in chimpanzees, dogs, cats, birds, and reptiles and can occur between members of different species.
Approximately twenty psychological reasons for yawning have been proposed by scholars but there is little agreement on the primacy of any one
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