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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 | Jun 1, 2020 | 3 min read
Meet some of the people featured in the June 2020 issue of The Scientist.
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.
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?
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.
Notebook
Eugene Russo | Jun 20, 1999 | 7 min read
WHY X Y? Cloning is not just for females anymore. The same University of Hawaii researchers that cloned 50 healthy female mice a year ago (T. Wakayama et al., "Full-term development of mice from enucleated oocytes injected with cumulus cell nuclei," Nature, 394:369-74, July 23, 1998) recently reported the first-ever cloning of an adult male mouse (T.W. Wakayama, R. Yanagimachi, "Cloning of male mice from adult tail-tip cells," Nature Genetics, 22:127-8, June 1999). Named "Fibro" after the fibro
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
scientific conferences meeting coronavirus covid-19 sars-cov-2
Life Science Conference Disruptions Due to Coronavirus
The Scientist | Mar 5, 2020 | 8 min read
Find out which meetings have been canceled, postponed, or are going ahead as planned.
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
Bioscience Make-Over
Karen Young Kreeger | Oct 15, 1995 | 3 min read
Echoing the centuries-old debate among scientists over how to organize and name Earth's species, authors of National Research Council (NRC) reports rating research-doctorate programs have also struggled over the "taxonomy" of disciplines within the biosciences. Allan Cartter, in his 1966 report An Assessment of Quality In Graduate Education (Washington, D.C., American Council on Education), observed that grouping programs within the biological sciences represented a challenge, owing to the vari

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