Photosynthesis could be as old as life itself

Researchers find that the earliest bacteria had the tools to perform a crucial step in photosynthesis, changing how we think life evolved on Earth.

How 'great' was the great oxygenation event?

Around 2.5 billion years ago, our planet experienced what was possibly the greatest change in its history: According to the geological record, molecular oxygen suddenly went from nonexistent to becoming freely available everywhere. ...

Listening in to how proteins talk and learning their language

Synthetic biologists have taken evolution of proteins into their own hands by changing some that occur in nature or even by synthesizing them from scratch. Such engineered proteins are used as highly efficacious drugs, components ...

An evolution in the understanding of evolution

Remember domain, kingdom, phylum, class, order, family, genus, species and Charles Darwin's "tree of life" metaphor we learned about in high school biology? That way of describing living-things lineages is just science's ...

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