Human consciousness entails a unique ability to think abstractly — to reason, to think logically, to use language, to do mathematics, to exercise free will. Read More ›
The capabilities of flying animals continue to amaze scientists, and explanations challenge their best efforts. Does evolutionary theory help? Read More ›
Scientists are making human “embryos” — cell formations that are not viable organisms — from stem cells, but which may be a step before making human organisms. Read More ›