Multiple teams announce complete draft of the maize genome, with a full plate of surprises that include hints about hybrid vigor.

Comparing the DNA in modern birds to that in ancient generations shows molecular evolution happens at varying rates, and that each species has its own rate of evolution.

In a first, a study shows that bioluminescence can be controlled by slow-acting hormones, not rapid-fire nerve cells. (p. 12)

Researchers have pinpointed the protein that gives a cell’s control room its shape and also keeps it functioning. (p. 14)

A protein splits carbon dioxide to give fizz its unique flavor. (p. 12)

A new study begins to decode pheromone messages and finds that the same chemicals that attract can also maintain the species barrier. (p. 10)

Different types of light freeze and then reinvigorate roundworms fed a shape-changing molecule.