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A mathematical model shows how the shape of early multicellular organisms may have helped cells evolve specialized roles.

Walking flies find the source of attractive odors by changing how frequently they stop and turn in response to the smell.

Analysis of genetic information from soil samples provides insights into bacteria that help to protect crops from fungal diseases by producing chemicals called phenazines.

Recording the neural activity of cells in the brain of patients with Parkinson's disease challenges long-standing assumptions about how this disease manifests at the cellular level.

The speed at which a cell fate decision in nematode worms evolves is due to the number of genes that control the decision, rather than to a high mutation rate.

New measures of influenza virus fitness could improve vaccine strain selection through more accurate forecasts of the evolution of the virus.

The mechanisms responsible for the trafficking of carboxylate ions across cell membranes are becoming clearer.

High levels of proteins called proteoglycans in the walls of umbilical arteries enable these arteries to close rapidly after birth and thus prevent blood loss in newborns.

Scientists have created the most detailed map of the fruit fly brain to date, identifying over 25,000 neurons and 20 million synapses.

Unexplained repeated pregnancy loss is associated with an altered perception of male odors and differences in brain regions that process smells.