Flying squirrels may have originated earlier than previously thought and remained unchanged for almost 12 million years.

A mimetic complex composed of at least 140 species of ants, wasps, spiders, true bugs and treehoppers, all with conspicuous golden bodies, has been discovered.

Natural selection shaped CHC22 clathrin genetic variation in humans with different diets and potentially influenced the human insulin response.

A new agent-based model enables predicting how coral species richness and functional diversity affect the functioning and resilience of coral reef ecosystems.

A rigorous and transparent evaluation of mesenchymal stem cell therapy for sepsis suggests it may be efficacious, although the strength of these findings is tempered by threats to validity in the studies that were included.