يمتلك نقار الخشب لسان يلتف حول الجمجمة بالكامل لكي يعمل علي تثبيت المخ ويمنعه من الارتجاج عندما يقوم بنقر الأشجار
قوة ضربة نقار الخشب تعادل ارتطام رأسك في الحائط بسرعة 25 كيلو متر في الساعة!
هذا الأمر يكرره حوالي 20 ل 25 مرة في الثانية الواحدة وبما يعادل 12000 مرة يومياً
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