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tag fire evolution

bacteria inside a biofilm
How Bacterial Communities Divvy up Duties
Holly Barker, PhD | Jun 1, 2023 | 10+ min read
Biofilms are home to millions of microbes, but disrupting their interactions could produce more effective antibiotics.
Targeted Comparative Sequencing Illuminates Vertebrate Evolution
Ricki Lewis | Dec 8, 2002 | 6 min read
Image: Courtesy of Elliott Marguiles  PIPS ON PARADE: Researchers used a MultiPipMaker to show the alignments, expressed as percent identity plots, between a human reference sequence and several other species. This is a 20 kb region surrounding exon 2 of the MET gene. Gap-free alignable segments are represented as horizontal lines along the human reference sequence; the line's height represents the identity of that alignment. Aristotle envisioned humanity as the pinnacle of a "Great Chai
The Scientist Staff | Mar 28, 2024
Conceptual image of numbers
Is Your Brain Wired for Numbers?
Catherine Offord | Oct 1, 2021 | 10+ min read
Our perception of quantity, separate from counting or estimation of magnitude more generally, is foundational to human cognition, according to some neuroscientists.
Cutting the Wire
Jeffrey M. Perkel | Dec 1, 2014 | 8 min read
Optical techniques for monitoring action potentials
Automated Colony Pickers Evolve
Helen Dell(hdell@the-scientist.com) | Jul 3, 2005 | 6 min read
Everyone knows that the first genome sequencing projects took years of work and represent the combined product of tens of thousands of individual fragments.
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
Ribozymes: Hearkening Back to an RNA World
Jeffrey Perkel | Sep 15, 2002 | 9 min read
Illustration: Ned Shaw LIKE MOLECULAR TOY-MAKERS, ribozyme researchers create tools with evolutionary, diagnostic, and therapeutic applications. Nearly 20 years ago, Tom Cech and Sidney Altman discovered that some naturally occurring RNAs could perform enzymatic reactions, earning these researchers the 1989 Nobel Prize in chemistry. Scientists have now identified several examples of RNA enzymes, or ribozymes. Most make or break the phosphodiester bonds in nucleic acid backbones, but some

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