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Tracking evolution through the ribosome
A new study of the ribosome sheds light on the oldest branches of the evolutionary tree of life and suggests that differences in ribosomal structure between the three main branches are ‘molecular fossils’ of the early evolution of protein synthesis.
Metagenomics sorts out Lake Washington sediment
Today’s powerful sequencing machines can rapidly read the genomes of entire communities of microbes, but the challenge is to extract meaningful information from the inchoate data.
Big-brained animals evolve faster
Ever since Darwin, evolutionary biologists have wondered why some lineages have diversified more than others.
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