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A roach (like many insects) can often live without its head for days or even weeks.

For people and higher animals, decapitation means nearly instantaneous death. For lower animals not as dependent on their brains, life functions other than eating may continue for some time after the removal of the head. Roaches, in particular, are noted for surviving in a headless condition. They will, however, eventually die of dehydration or starvation.

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14y ago

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