The Real Reason Why Owls Can Head-Turn 270 Degrees Safely

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The Real Reason Why Owls Can Head-Turn 270 Degrees Safely

Vascular Reservoir System

Carotid Artery Centering

Contractile Blood Reservoirs

Elastic Vessel Walls

Enlarged Vertebral Foramina

Intervertebral Linkages

Jaw Vessel Adaptations

Microscopic Air Cushions

Regulated Backflow Valves

Specialized Contractile Jugulars

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While humans risk stroke and tissue damage by turning their heads a bit too far, owls somehow rotate theirs up to 270 degrees without any real cutting off of blood flow. It sounds like a simple flex thing but no, it is more like an evolved, oddly careful system of vascular cushion mats and kind-of safety valves. When scientists look at the way their anatomy is arranged, they find out how these night hunters manage to chase, strike and swallow fast without messing themselves up.
 

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