Plant pathogen could help track waters polluted with human waste.

A fresh look at a fungus-insect partnership that biologists have studied for more than a century uncovers a role for bacteria.

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

CT scans of preserved individuals show hardening of arteries similar to that seen in people today.

Brains are probably not what powers the invasive bee’s takeover from European honeybees

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.

Streamside wildflower holds back on leaf competition when roots meet close kin (p. 13)

Fossils suggest that the bipedal dinosaur occasionally walked on all fours and could open its mouth wide to gather foliage.

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

Scorpionflies with long-reaching mouthparts may have helped plants procreate long before blossoms evolved. (p. 12)

Female crab spiders switch colors to match flowers but may not fool their prey (p. 13)

When mistaken for females, the guys release an alarming pheromone. (p. 13)

A new study pinpoints migratory songbirds’ magnetic compass in a specific brain region. (p. 12)