Making sense of science
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Opinion
09.15.2017
Although it was named a mere twenty years ago, the last common ancestor of all living organisms on Earth is more than three billion years old. And scientists have an ever-better idea of what it may...
Article
01.19.2016
Revealed by metagenomics, previously unknown biodiversity brings our biological understanding into question. “Biological dark matter” may provide clues to a fourth domain of life.