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tag obesity ecology evolutionary biology neuroscience

Peter Tyack: Marine Mammal Communications
Anna Azvolinsky | Jul 1, 2016 | 9 min read
The University of St. Andrews behavioral ecologist studies the social structures and behaviors of whales and dolphins, recording and analyzing their acoustic communications.
On Form and Substance in the Life Sciences
Juan Bouzat | Feb 4, 2001 | 5 min read
Illustration: A. Canamucio In a recent issue of The Scientist, an opinion article by Raymond J. O'Connor suggests that, in contrast to biomedical research, ecology has lagged behind the surging advances of most of the life sciences.1 O'Connor's main argument for the putative lag of ecological sciences is the failure to distinguish form from substance in the hypothetico-deductive research that drives most current scientific endeavors. Categorizing most ecological sciences as descriptive and poss
Illuminating Behaviors
Douglas Steinberg | Jun 1, 2003 | 6 min read
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
Contributors
Diana Kwon | May 1, 2017 | 4 min read
Meet some of the people featured in the May 2017 issue of The Scientist.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
The Genetics of Society
Claire Asher and Seirian Sumner | Jan 1, 2015 | 10 min read
Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.
A Weighty Matter: Neuropeptides Involved In Appetite And Energy Homeostasis
Deborah Wilkinson | Sep 12, 1999 | 10+ min read
Date: September 13, 1999Table of Neurochemical Manufacturers The hypothalamus has long been known as a control center for feeding and weight control behaviors. Complex regulatory feedback loops enable this portion of the brain to determine satiety and metabolic activity. Not surprisingly, the control mechanisms are complex and involve different biochemical pathways.1,2,3 Image courtesy of Jeffrey M. Friedman An ob/ob mouse stacking up against its lean counterparts A series of pioneering expe
Genetic Parasites and a Whole Lot More
Barry Palevitz | Oct 15, 2000 | 10+ min read
Photo: Ori Fragman, Hebrew University Hordeum spontaneum, the plant studied for BARE-1 retroelements. With genome sequences arriving almost as regularly as the morning paper, the public's attention is focused on genes--new genes to protect crops against pests; rogue genes that make bacteria resistant to antibiotics; faulty genes that, if fixed, could cure diseases such as muscular dystrophy. What many people don't realize is that genes account for only part of an organism's DNA, and in many c

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