For cat
owners, there are few sounds as precious as a beloved cat's purr. The
purr which is produced through intermittent signaling of the laryngeal and
diaphragmatic muscles is often interpreted as a sign of contentment,
but the real reasons
for this vocalization are a bit more complicated and difficult to understand.
Firstly, not all purring indicates pleasure.
Kittens also purr when they are nervous or in pain, leading some
experts to believe that this uniquely feline vocalization is actually a
method of self-healing.!
A domestic feline's purr has a
frequency of between 25 and 150 Hertz, which happens to be the frequency at
which muscle and bones best grow and repair themselves. It is, therefore,
speculated that cats naturally evolved their purr over time as a survival
tactic a bio-mechanical healing mechanism that ensured speedier
recoveries and faster healing period.
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