News

Anthropology

Pygmies’ short stature linked to high death rates

Island-dwelling pygmies provide contested evidence that body size shrinks as mortality rates climb.

Life

Fly pheromones can say yes and no

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

Ecosystems

Windy with a chance of weevils

Scientists have traced the reappearance of cotton pests in west-central Texas to a tropical storm.

Earth

Darwinopterus points to chunky evolution

A newly discovered pterosaur had the legs of its ancestors and the head of its descendants.