Life on Earth initially emerged in the oceans, independent of oxygen. The discussion emphasizes that the first forms of life did not require oxygen to develop, highlighting the possibility of life existing in anaerobic conditions. Speculation regarding exobiology remains unsubstantiated, as current understanding does not provide definitive answers about life’s evolution in environments lacking oxygen. The consensus is that life did indeed appear on Earth without the presence of oxygen.
PREREQUISITESStudents of biology, researchers in evolutionary science, and anyone interested in the origins of life on Earth and the conditions necessary for life to thrive.
Speculation about exobiology (which is in essence what you are asking about) is, at present, exactly that ... speculation. We just don't know enough about how other life might have evolved to say.bluemoonKY said:I believe the first life to appear on Earth appeared in the oceans of Earth. When I ask if life would have appeared on Earth without oxygen, I am asking if life would have appeared in the oceans of Earth or on land without oxygen.
Would life have appeared on Earth without oxygen?
bluemoonKY said:Would life have appeared on Earth without oxygen?