Feature

Souping up and Other Tricks Produce Satiety

African Fossils Flesh out Humanity’s Past

The Dye Is Past

Earth Science

Self Cells Ease Parkinson’s in Monkeys

Eruptions Cleared Path for Dinosaurs

Anthropology

Farmer Ants Have Bacterial Farmhands

Astronomers Find Planetary System

Biomedicine

Correction: Prospects Dim for Live AIDS Vaccine

Front Matter