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This video contains images of headless cockroaches
that can be disturbing or disgusting.
We recommend caution.
A story of horror.
THE HEADLESS COCKROACH
They're famous for their tenacity and resilience,
but, is it true that cockroaches can live without their heads?
Well, even if the question seems dumb,
why do humans die if we lose our heads?
First of all because of the blood we lose,
the wound would be so big, we would bleed out.
And without blood neither oxygen nor nutrients
could get to our organs.
Besides having our mouth and nose on our heads,
the brain controls most of our body's functions.
And without a brain we couldn't move or breathe.
And without breathing, we wouldn't have oxygen to live.
But cockroaches don't have this problem,
they don't breathe through their heads,
like all insects they breathe through small orifices
all over their bodies, called spiracles.
They get the oxygen directly into their tissues.
And the blood? Insects don't have blood;
they have hemolymph, which is pumped
by this weird heart, and though it's very important
for keeping them alive, their internal pressure is much lower
than that of humans,
so they don't suffer hemorrhages like vertebrates do,
and their wounds close up before bleeding out.
If we also add that a cockroach's body
can continue to move and respond to external stimuli
because those reactions don't depend on their brain.
A zombie, headless cockroach can still roam around your home
for almost a week.
Then, since it can't eat or drink,
it would simply die of thirst,
If it had a way of hydrating itself,
it could live without food for nearly a month,
But what about the head?, you may wonder
It can also remain alive for a few hours.
CURIOSAMENTE
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No cockroaches were harmed in the making of this video.
Respect animals!