The University of St. Andrews behavioral ecologist studies the social structures and behaviors of whales and dolphins, recording and analyzing their acoustic communications.

Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.

Courtesy of Genevieve Anderson If not for Nobel laureates Thomas Hunt Morgan, Eric R. Kandel, and Sydney Brenner, the notion of a general behavioral model might seem odd. Behaviors, after all, are determined by an animal's evolutionary history and ecological niche. They are often idiosyncratic, shared in detail only by closely related species. But, thanks to Morgan's research in the early 20th century, and Kandel's and Brenner's work over the past 35 years, the fly Drosophila melanogaster, t

LIFE SCIENCES BY BERNARD DIXON European Editorial Offices The Scientist Uxbrldge, U.K. " Positron emission tomography studies in 20 Swedish army officer cadets have revealed metabolic changes in the same regions of the brain during both tactile learning and tactile recognition. This exciting glimpse of brain metabolism accompanying conscious activity appears in a new journal launched by the European Neurosciences Association and designed to interest the entire universe of neuroscientists, fro