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tag fire ecology developmental biology

Close up photo of a wing
Unearthing the Evolutionary Origins of Insect Wings
Jef Akst | Apr 4, 2022 | 6 min read
A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.
Arsonists Damage Research Facility
Ted Agres | Jul 22, 2001 | 2 min read
Toby Bradshaw, an associate professor at the University of Washington's Center for Urban Horticulture in Seattle, had been studying traditionally bred and genetically engineered Poplar trees as part of a developmental biology program of interest to companies involved in paper and wood manufacturing. In the same lab facility, assistant professor Sarah Reichard had been growing 100 showy stickseed plants from tissue cultures. With only 300 of the endangered plants (hackelia venusta) remaining in t
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.
Contributors
The Scientist | Sep 1, 2020 | 4 min read
Meet some of the people featured in the September 2020 issue of The Scientist.
A scanning electron micrograph of a coculture of E. coli and Acinetobacter baylyi. Nanotubes can be seen extending from the E. coli.
What’s the Deal with Bacterial Nanotubes?
Sruthi S. Balakrishnan | Jun 1, 2021 | 10+ min read
Several labs have reported the formation of bacterial nanotubes under different, often contrasting conditions. What are these structures and why are they so hard to reproduce?
Surpassing the Law of Averages
Jeffrey M. Perkel | Sep 1, 2009 | 7 min read
By Jeffrey M. Perkel Surpassing the Law of Averages How to expose the behaviors of genes, RNA, proteins, and metabolites in single cells. By necessity or convenience, almost everything we know about biochemistry and molecular biology derives from bulk behavior: From gene regulation to Michaelis-Menten kinetics, we understand biology in terms of what the “average” cell in a population does. But, as Jonathan Weissman of the University of Califo
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
Untangling Neuronal Calcium Signaling
Amy Adams | Jan 20, 2002 | 10 min read
From the very moment of conception, calcium plays a pivotal role in fetal development. It rushes in as a wave around the egg to herald the sperm's arrival, binding to proteins that help kick off the whole developmental process. From this first influx, calcium continues to play a critical role in how the body's cells respond to outside signals. Calcium tells muscles to contract and nerves to release neurotransmitters, and is at least part of the signal that helps people form and retain memories.
Master of the Cell
Judy Lieberman | Apr 1, 2010 | 10+ min read
By Judy Lieberman Master of the Cell RNA interference, with its powerful promise of therapy for many diseases, may also act as a master regulator of most—if not all—cellular processes. RNA silencing. Computer artwork showing a length of RNA (yellow with red rings) bound to an RNA-induced silencing complex (RISC). © Medi-Mation Ltd / Photo Researchers, Inc. ne of the biggest surprises in biology in the past d
Restorationists Return Native Species To Damaged Lands
Christine Mlot | Jul 22, 1990 | 8 min read
Is conservation enough? This new breed of scientists seeks to do more, repairing the harm done by man CHICAGO--As a boy in his native England, ecologist Stuart L. Pimm spent almost every weekend watching birds. As an adult, he abandoned the outdoors to take up such theoretical pursuits as modeling change in biological communities. But now the University of Tennessee ecologist is back on a birdwatch of a different sort, this time in the tropical underbrush of a small Pacific island near Guam.

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