GREEN MEDICINE Derived from sweet wormwood plants, the antimalarial compound artemisinin usually composes 0.1 to 1 percent of the dry weight of the leaves. New research more than triples a plant’s yield of artemisinin, to 3.2 percent.
Genetic evidence suggests that cicadas on 13- and 17-year schedules can hybridize.
IN HOT WATER Staghorn coral (Acropora millepora) may be able to last 100 to 250 years thanks to its ability to adapt to warming waters. Here, a healthy staghorn grows off Magnetic Island in the central part of Australia’s Great Barrier Reef.