Neural recordings from parrots and songbirds reveal the ways in which vocal production is encoded in the brain, highlighting remarkable similarities between how parrots and humans learn to produce sounds.

Comprehensive maps of mutations in healthy and diseased gastric tissue give clues about how cancer arises and could inform early-detection strategies.

A bacterium makes a molecule that kills drug-resistant fungi in an unusual way — by targeting various phospholipid molecules in membranes.

The AMPA group of brain receptors have mostly been assumed to be calcium impermeable and so were not thought to contribute to the calcium-dependent mechanisms underlying learning and memory. Observations of calcium permeability in some AMPA-receptor subtypes now overturn those assumptions about these receptors’ properties and their roles in neuronal communication.