Why complex life probably evolved only once
October 22, 2010 | Source: New Scientist
The universe may be teeming with simple cells like bacteria, but more complex life is probably very rare. Whenever simple cells start to become more complex, they run into problems generating enough energy, say Nick Lane of University College London and Bill Martin of the University of Dusseldorf.
Comments (1)
by Brian H
The first complex life survived by eating whatever was available, starting with non-complex near-life. That eliminated any potential competition.