Do you think astroids killed the dinosaurs?


it's pretty well-accepted; evidence strong.

first, have actual impact crater, chicxulub:
http://en.wikipedia.org/wiki/chicxulub_c...

then, have "kt layer", boundary of demarcation in sediments on earth before there dinosaur fossils , after there none...
, layer of sediment heavily saturated element iridium, rare on earth common in asteroids...
and... have model how event have occurred , it's effects...... here's very-well produced video narrated physicist bill bryson on same:

http://www.youtube.com/watch?v=end49u7dv...

nobody knows want thoughts of heck killed dinosaurs.


Social Science Anthropology Next



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