Ten million years ago, an enormous volcanic eruption buried much of what is now Nebraska in up to 10 feet of ash, preserving countless skeletons of prehistoric big game animals. NOVA joins the discoverer of this treasure trove to learn what life was like when a lot more than buffalo roamed the West.
ستظهر التعليقات هنا بمجرد مشاركة الأعضاء لأفكارهم.
لا توجد موسيقى بعد
إضافة موسيقى تصويرية