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화성에서 온 360도 셀피 -테크홀릭 http://techholic.co.kr/archives/61228

화성에서 온 360도 셀피 -테크홀릭 http://techholic.co.kr/archives/61228

What a 66-million-year-old forest fire reveals about the last days of the dinosaurs.  Remains of an ancient forest fire preserved in stone.  Caption: A McGill field crew is collecting fossils as part of a field course in Grasslands National.  Credit: Hans Larsson/Emily Bamforth

What a 66-million-year-old forest fire reveals about the last days of the dinosaurs. Remains of an ancient forest fire preserved in stone. Caption: A McGill field crew is collecting fossils as part of a field course in Grasslands National. Credit: Hans Larsson/Emily Bamforth

The fossil discovery trail at the Dinosaur National Monument.  The red arrow points to a vandalised dinosaur bone.

The fossil discovery trail at the Dinosaur National Monument. The red arrow points to a vandalised dinosaur bone.

phosphatized skin (right) of the mosasaur Ectenosaurus. Right cale bars: about 0.2 inches (5 mm).

Fossilized Skin Reveals Ancient Predator's Sharklike Moves

phosphatized skin (right) of the mosasaur Ectenosaurus. Right cale bars: about 0.2 inches (5 mm).

Styracosaurus (Purnell’s Book of Dinosaurs and Prehistoric Animals)

Styracosaurus (Purnell’s Book of Dinosaurs and Prehistoric Animals)

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