Adélie penguins
Penguins Are Among the World’s Slowest-Evolving Birds: Study
The findings mean that penguins may struggle to adapt under rapid climate change, researchers say.
Penguins Are Among the World’s Slowest-Evolving Birds: Study
Penguins Are Among the World’s Slowest-Evolving Birds: Study

The findings mean that penguins may struggle to adapt under rapid climate change, researchers say.

The findings mean that penguins may struggle to adapt under rapid climate change, researchers say.

phylogeny
A yellow-orange, translucent artist's rendition of a yunnanozoan, an ancient wormlike fish, that highlights the arches that make up its cartilage skeleton.
This Simple Fish May Have Been One of the First Vertebrates
Dan Robitzski | Jul 7, 2022
A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.
scanning electron microscope image of clawlike microscopic organisms on a smoother surface
Phyla of Tiny Filter Feeders Find a New Spot on the Tree of Life
Alejandra Manjarrez | Jul 6, 2022
A new study using fairly complete genetic datasets of two phyla of small suspension feeders (Ectoprocta and Entoprocta) reopens the debate on the phylogenetic relationships between them and other animals.
Researchers use bacterial whole genome sequencing to compare the phylogenetic relationship between environmental and clinical samples.
Aquatic Bacteria Reveal a Common Genetic Link to a Deadly Human Pathogen
Iris Kulbatski, PhD
Researchers use genetic clues to track the spread of antibiotic resistant bacteria from the environment to patients.
Illustration of a DNA virus sneaking genetic material into a host’s nucleus
Infographic: Possible Mechanisms of Gene Transfer in Eukaryotes
Christie Wilcox | Jul 5, 2022
Genetic studies have made it clear that eukaryotic horizontal gene transfer can and does happen. Exactly how, though, remains speculative.
Cow image
Slideshow: Examples of Eukaryotic Horizontal Gene Transfer
Christie Wilcox | Jul 5, 2022
Horizontally transferred genes play significant roles in eukaryotic genomes
Highly Sensitive Viral Detection with the SARS-CoV-2 NGS Assay
The Scientist Staff
Kristin Butcher and Mara Cuoto-Rodriguez discuss the development of a nucleic acid hybridization capture-based assay to detect and identify novel SARS-CoV-2 variants.
Landscape illustration
Horizontal Gene Transfer Happens More Often Than Anyone Thought
Christie Wilcox | Jul 5, 2022
DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Pufferfish underwater in ocean
Pufferfish Don’t Need Functional Stomach, Inflate Instead
Natalia Mesa | Jul 5, 2022
The fish use their stomach to swell up to three times their size. Is this why they can’t use the organ to digest proteins?
Black and white photo of excavation<br><br>
Black Death Likely Originated in Central Asia
Andy Carstens | Jun 15, 2022
Genetic testing of people who died in Kyrgyzstan eight years before plague reached Europe reveals an ancient strain of the bacterium Yersinia pestis.
An artist's rendering of the ancient arthropod Erratus sperare
Anatomical Firsts in Early Arthropods
Clare Watson | Jun 1, 2022
A team of scientists have discovered an ancient arthropod that may show the origins of branched limbs and the first gill-like breathing structures in the clade.
a research sailboat with white sails inscribed with "tara ocean" traverses a body of water with small, rocky islands in the background
Q&A: Thousands of RNA Viruses Newly Discovered in Ocean Water
Dan Robitzski | Apr 7, 2022
The Scientist spoke with Ohio State University microbiologist Matthew Sullivan about a recent expedition that identified thousands of RNA viruses from water samples and cataloged them into novel phylogenic groups.
shrew
Researchers Identify 14 New Shrew Species 
Chloe Tenn | Jan 5, 2022
The discovery, made on the island of Sulawesi in Indonesia, constitutes an exceptionally high number of new mammals to be described in a single paper.
The man-of-war fish (Nomeus gronovii), a species of medusafish, near the tentacles of a siphonophore.
Medusafishes Are Grouped by Shared, Odd Traits: Study
Devin A. Reese | Dec 1, 2021
Shared features, such as thick, slimy skin and a throat filled with teeth, suggest that medusafishes are all related.
A scanning electron micrograph of the picozoan Picomonas judraskeda
Picozoans Are Algae After All: Study
Christie Wilcox | May 6, 2021
Phylogenomics data place the enigmatic plankton in the middle of the algal family tree, despite their apparent lack of plastids—an organelle characteristic of all other algae.
Image of the Day: Vestibular System
Amy Schleunes | Mar 13, 2020
The inner ear cavity proves to be a useful tool for studying the evolutionary relationships among monkeys, apes, and humans.
Proposed Deep-Sea Mining Zone Harbors Previously Unknown Species
Catherine Offord | Oct 17, 2019
The discovery of ancient clades of brittle stars at the bottom of the Pacific Ocean adds to concerns that commercial exploitation of the area could destroy numerous taxa before they’ve even been identified.
A Lost Microbial World the scientist
Prehistoric Microbes Inhabit an Oasis in the Northern Mexican Desert
Diana Kwon | Mar 1, 2019
The blue lagoons of the Cuatro Ciénegas Basin provide a glimpse into the planet’s ancient past.
notebook
Clues to How Ancient Plants Handled Fungal Pests
Jef Akst | Feb 1, 2019
In plants ranging from liverworts to wheat, parasitic water molds build intracellular structures analogous to the nutrient-exchanging structures of symbiotic fungi.
Image of the Day: Single-Cell Surprises
Jef Akst | Nov 15, 2018
Researchers identify a new species of Hemimastigophora protist, and suggest the group should be promoted from a phylum to a supra-kingdom.