The flexibility of an owl is incredible. Whereas humans have two sockets on which the head pivots, owls only have one, providing them the ability to fully rotate. Owls also possess multiple vertebrate in their neck and spine giving them a wider range of motion.
Yet even with these abilities, a spinning head would still cause severe internal bleeding and breakage. After years of scientific research, scientists discovered that owls possess special backup arteries which offer a fresh supply of nutrients when the blood vessels get closed off by rapid turning. Oh and by the way, their arteries swell to collect any excess blood created in the process.
Crazy. Almost as if...somebody created them that way.
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