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اكتشاف آثار دم داخل عظام ديناصور عاش قبل 115 مليون سنة

By روسيا اليوم · 1 hour ago · 1 min read روسيا اليوم ↗

اكتشاف آثار دم داخل عظام ديناصور عاش قبل 115 مليون سنة

ما يعرفه ريفو عن الخبر

اكتشف فريق أسترالي خلايا متحجرة تشبه كريات الدم الحمراء داخل عظمة ساق ديناصور صغير آكل للحوم في البرازيل.
تحتوي الخلايا المكتشفة على مادة الهيم التي تساعد الدم على نقل الأكسجين وتعود لحيوان عاش قبل 115 مليون سنة.
ساهم الدفن السريع في بيئة فقيرة بالأكسجين ووجود معدن هاوسمانيت في حماية التراكيب البيولوجية الدقيقة داخل العظام.
لا يمهد هذا الاكتشاف لاستنساخ الديناصورات لعدم وجود حمض نووي أو معلومات جينية متكاملة في الأحافير.

كشف علماء عن آثار جزيئية للدم داخل عظام ديناصور عاش قبل نحو 115 مليون سنة، في اكتشاف قد يفتح آفاقا لدراسة بيولوجيا الكائنات المنقرضة.

المصدر: روسيا اليوم

#روسيا اليوم

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