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tag guppies developmental biology evolution

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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.
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.
Top 10 Innovations 2021
2021 Top 10 Innovations
The Scientist | Dec 1, 2021 | 10+ min read
The COVID-19 pandemic is still with us. Biomedical innovation has rallied to address that pressing concern while continuing to tackle broader research challenges.
Follow the fish leader
Elie Dolgin | Jan 28, 2009 | 2 min read
Followers bring out the best in their leaders, and leaders elicit better following skills in their minions, according to a new study of stickleback fish published online today (Jan. 29) in__ linkurl:Current Biology.;http://www.cell.com/current-biology/home __"Actually having good followers helps leaders get on with their tasks," said linkurl:Andrea Manica,;http://www.zoo.cam.ac.uk/zoostaff/manica/people/am.htm an evolutionary biologist at the University of Cambridge who led the study. "They wer
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
Big Genes Are Back
Steve Bunk | Mar 17, 2002 | 7 min read
One more genomewide linkage map, this for a fish called the three-spined stickleback, was announced late last year to not much fanfare.1 But rather than just another stride in the march of genomics, the accomplishment heralded a new way to approach a question that has stumped evolutionary biologists for decades: What is the architecture of genetic change? The model organisms for which linkage maps have been created are often bred in the laboratory to express certain phenotypes, and they can reve
How to Create a Successful Fish Tale?
A. J. S. Rayl | Aug 19, 2001 | 10+ min read
More than 80 percent of the planet's living organisms exist only in aquatic ecosystems. Some may harbor secrets to human origins, and clues, treatments--perhaps even cures--for human disease. Some are critical bioindicators that portend the health of the biosphere. Yet, overall, scientists know little about the biochemical processes of these life forms. The vast, rich knowledge within the oceans and freshwater systems on Earth remains virtually untapped, because in the world of biological resear
Love Him or Hate Him, Stephen Jay Gould Made a Difference
Barry Palevitz | Jun 9, 2002 | 6 min read
I never met Stephen Jay Gould, though I did attend a lecture he gave two years ago. Still, that hour explained many of the opinions I'd heard of him: love, hate, joy, envy, and respect. Like a lot of people who make a difference, Gould was a study in contrasts. You also had to wonder whether he ran according to a different clock than the rest of us. The campy cliché 24/7 didn't apply to Gould—he could not have fit so much in a 24-hour day and a 60-year life. Gould was first and forem
Q&A: Science spouses
Amber Dance | Apr 21, 2010 | 3 min read
Rosemary and Peter Grant on this week's Kyoto Prize Symposium, spending three decades together on the Galapagos, and possible names for the potential new species they discovered

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