Much evidence supporting both theories has been presented but the acceptance of a super meteor wiping a selected species from the face of the earth is a leap of faith at best.

 
  • 支持這兩種說(shuō)法的證據已提出了許多,但接受超級小行星的撞擊而從地球表面選擇性地抹去某些物種的觀(guān)點(diǎn),的確是一個(gè)觀(guān)念上的飛躍。
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