Archaea are a major domain of prokaryotic microorganisms characterized by unique molecular and biochemical features distinguishing them from Bacteria and Eukarya. Their cell membranes typically contain ether-linked isoprenoid lipids, and their cell walls lack peptidoglycan, instead incorporating diverse polymers such as pseudomurein or S-layer proteins. Archaeal information-processing machinery (DNA replication, transcription, and translation) shows higher homology to eukaryotic systems than to bacterial counterparts. Archaea occupy a wide range of environments, including extreme habitats and moderate ecosystems, and play critical roles in biogeochemical cycles, notably methanogenesis and ammonia oxidation, making them important topics in microbial ecology, evolution, and environmental genomics.
American woodcock, short, plump shorebirds with long, thin beaks, are widely known for their bobbing stride and nasally "peent" calls, but not for being aggressive. Yet one April afternoon, when a deer sniffed around a woodcock ...
Plants & Animals
Jul 1, 2026
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82
Scientists discovered a protein secreted by a deep-sea extremophile—an organism adapted to extreme environmental conditions—that self-assembles into a biofilm and is highly stable, boosting its potential for biomedical applications.
Cell & Microbiology
Jun 29, 2026
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7
Genes are not passed on exclusively from parents to their offspring. Some are mobile and can also jump to other species, as researchers at the Max Planck Institute for Marine Microbiology in Bremen have now shown. The direct ...
Evolution
Jun 20, 2026
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360
In this era of Big Data, the prevailing wisdom is that more information leads to better answers. However, a new Canadian study shows that in the hunt for life's ancient ancestors, more data can actually lead to less truth. ...
Evolution
Jun 18, 2026
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76
Methane is one of the most powerful greenhouse gases, and lakes and wetlands are among its largest natural sources. In many lakes, methane can be seen bubbling up from the bottom and escaping directly into the atmosphere.
Earth Sciences
Jun 17, 2026
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14
All cells in animals, plants, fungi, and protists share a fundamental characteristic: they are eukaryotic cells—complex cells with specialized internal compartments. The cells that make up our bodies are no exception.
Evolution
Jun 10, 2026
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44
New research from Edith Cowan University (ECU) has identified a smarter, more effective way to protect fragile marine ecosystems from invasive species—an approach with global relevance for island regions around the world. ...
Plants & Animals
Jun 9, 2026
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9
As California's population boomed—from 10 million in 1950 to over 40 million today—the number of people living in fire-prone areas multiplied. Over the decades, millions of new homes and commercial buildings sprang up to ...
Environment
Jun 5, 2026
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10
Living in the Dead Sea would be a very unpleasant experience for most creatures. With salt concentration above 30% and temperatures ranging from 10–50°C, it takes unique environmental adaptations to survive in such harsh ...
Evolution
Jun 3, 2026
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8
Deep beneath the ocean surface, where sunlight never reaches and food is scarce, vast gardens of deep-sea sponges are quietly thriving. Now, a team led by UNSW researchers has uncovered some of the hidden microbial strategies ...
Plants & Animals
May 27, 2026
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