Transgenic mice with high levels of FGF21 live for longer than wild-type mice and do so without reducing food intake.

Electron microscopy has been used to produce the first three-dimensional image of the PRC2 gene-silencing complex.

Virtual reality experiments show that motorists slow down when driving in fog, but they speed up when visibility is reduced equally at all distances.

Genome-wide measurements on mouse liver cells show that transcription, and a particular key transcription factor, have a smaller than expected influence on the mouse circadian system.

A combination of advanced optical imaging and cryogenic electron microscopy has been used to explore membrane fusion in a synthetic system and provide new insights into neurotransmitter release.

A mathematical model based on enzyme kinetics shows how the relationships between life expectancy, survival rates for children and adults, and national income change over time.

A genome-organizing protein that is present only in the olfactory system of mice has been found to orchestrate changes in the relative numbers of different odor-sensing neurons on the basis of how active these neurons are.

A DNA–protein complex can find target sequences of bases in another DNA molecule by sliding along it.

The first survey of the complete morphologies of nerve endings in the skin of mice has revealed enormous structural diversity.