CATS
LANDING ON THEIR FEET
It is a bit of a strange
phenomenon that cats can fall from distances and actually land on
their feet. But don't go throwing your cat out of a window just
to witness this behavior because it's not true that all cats land
on their feet all the time or that they always walk away unscathed.
In fact, more and more cats
are experiencing what's been dubbed as ‘high rise syndrome',
sustaining serious injuries from falls out of open windows, balconies
and rooftops. Regardless of height, cats can and have been injured
in falls, resulting in anything from bruised chins and fractured
teeth, to ruptured diaphragms, fractured bones, torn livers and
worse.
In general, cats have a better
chance of surviving falls from shorter distances, less than one
or two floors. The risks increase as the height increases. The main
reason for this is that, though cats can usually right themselves
at both heights, their feet and legs are able to cushion the impact
at shorter heights.
Interestingly, two veterinarians
did a study and found that in falls seven stories or less, the chance
of survival was indeed greater with the shorter distances. However,
with falls greater than seven stories, the number of injuries actually
declined when compared to falls at seven stories. Thus, beyond seven
stories, the farther the fall, the better the chance of survival.
They found that the reason for this was that after five stories
or so, cats reach terminal velocity. Before reaching terminal velocity,
cats have their muscles tensed and are rigid and flexed and prepared
for landing, making them more prone to injury due to the impact.
Once they've reached terminal velocity, however, they relax their
muscles and spread themselves out much like a flying squirrel, allowing
the impact to be absorbed by a larger surface area and thus resulting
in fewer injuries.
Cats are able to right themselves
so quickly for several reasons. They have a unique flexible musculoskeletal
system. They do not have a collarbone and the bones in their backbone
are more mobile than other animals, allowing them to easily bend
and rotate their bodies in order to land feet first. They also have
exceptional coordination and balance. The vestibular apparatus,
which is responsible for their great balance, is a tiny fluid-filled
organ located deep in a cat's inner ear and is composed of small
chambers and canals lined with millions of sensitive hairs and filled
with fluid and tiny floating crystals. As a cat falls, or even moves,
the vestibular apparatus becomes active, giving readings on the
body's position and helping to register which way is up.
or the safety of your cat,
however, it's best not to intentionally try to put this righting
reflex to use. You can keep your cat safe by keeping heavy, secured
screens on balconies and upstairs windows and porches. While your
cat may very well survive a fall, there's always the chance that
he will not.
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