Artículos con la etiqueta ‘la Tierra’

Why complex life probably evolved only once

Por • 25 oct, 2010 • Category: Ambiente, Ciencia y tecnología

The universe may be teeming with simple cells like bacteria, but more complex life – including intelligent life – is probably very rare. That is the conclusion of a radical rethink of what it took for complex life to evolve here on Earth.