Life evolved 3.8 billion years ago in the oceans and around hot vents. (williamcalvin.com)
What would we be like to emerging life forms in a few billion years in some nascent «neighbouring universe»? (religion.blogs.cnn.com)
We're starting with the accomplishments of three and a half billion years of evolution by using what we call the software of life: DNA. (discovermagazine.com)