home search author directory updates signup your feedback contact us biodiversityenvironmentgenomicsbiotechnologyevolutionnew frontierseducation authorbio Maura Meade-Callahan, Ph.D., is a professor of biology at Allegheny College in Meadville, PA. There she teaches biology, microbiology, and antimicrobial ... evolution: evolution in action Microbes: What They Do & How Antibiotics Change Them By Maura J. Meade-Callahan An ActionBioscience.org original article articleh ...

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Clues to possible life on Europa may lie buried in Antarctic ice March 5, 1998: More than a century ago, science fiction pioneer Jules Verne wrote about people swept "Off on a Comet" and into space where they lived more or less happily ever after. Verne's 1877 book (also published as "Hector Servadac") was a bit fanciful, but it had an element of truth: life may have hitchhiked across the solar system. The proof may be found at the ends of the Earth. This week, American and Russian scientis ...

Desert Varnish & Lichen Crust Microscopic Organisms Color Desert Rocks Text & Photos by Wayne P. Armstrong Introduction Rugged mountain peaks and sun-baked boulders throughout the arid Southwest are often colored in beautiful shades of orange, green, yellow and gray. At first glance the colorful coatings resemble a layer of paint, but close examination reveals that this unusual phenomenon is caused by a thin layer of microscopi ...

Wayne's WordIndexNoteworthy PlantsTriviaLemnaceaeBiology 101BotanySearch Image List Lichen/Varnish Rock Lichens Fruticose Foliose Crustose1 Crustose2 Crustose 3 Desert Varnish & Lichen Crust Microscopic Organisms Color Rocks & Boulders Major Topics To Be Discussed: Introduction: Desert Varnish & Lichen Crust Desert Varnish Coating On Rocks & Boulders Lichen Crust On Surface Of Rocks & Boulders Crustose Marine Lichens Of The Pacifi ...

Home of the Click above to go on a safari to discover microscopic organisms and the habitats in which they live. What is the Digital Learning Center for Microbial Ecology? Find out how to use this web site and learn about its creators. Microbe of the Month Take a look at the latest addition to the Microbe Zoo's specimen collection. The Curious Microbe Tales of amazing microbes and curious environments. Microbes In The News Stories from the popular press (newspapers, maga ...

Skip to page content Research and curationBusiness centreAbout usSearchHomeVisit usNature onlineKids onlyEducationTake partBuy online Back to: Projects You are here: Home > Research & Curation > Projects > Eukaryotes in Extreme Environments Eukaryotes in extreme environments (5 February 1998) by Dave Roberts, Zoology Department In March 1995, I broadcast an appeal through the Biosci newsgroups for Microbiology and Protista for information about eukaryotes in extreme environments. The scope ...

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HomeSearch How Tubeworms Propagate In Hot Sulfurous Environment Scientists led by a University of Southern California biologist have taken a miniature submarine 8,000 feet deep in the Pacific Ocean to a hot, sulfurous hydrothermal vent to document how exotic giant tubeworms propagate in one of Earth's strangest and least-known ecosystems. "We proved that the tubeworm larvae can live long enough for the underwater highways that run deep in the ocean to take them from one vent to ano ...

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Introduction to the Archaea Life's extremists. . . The Domain Archaea wasn't recognized as a major domain of life until quite recently. Until the 20th century, most biologists considered all living things to be classifiable as either a plant or an animal. But in the 1950s and 1960s, most biologists came to the realization that this system failed to accomodate the fungi, protists, and bacteria. By the 1970s, a system of Five Kingdoms had come to be accepted as the model by which all li ...

Life at High Temperatures Life at High Temperatures by Thomas D. Brock © 1994 Yellowstone Association for Natural Science, History & Education, Inc. Yellowstone National Park, Wyoming 82190. Table of Contents Yellowstone's Hidden Biological Resources Colorful Yellowstone Kinds of Hot Springs Origins of Thermal Features A Microbial Mat Up the Temperature Gradient Bacteria in Boiling Water Bacteria in Acid Hot Springs The Upper Temperature for Life The Therma ...

Introduction What I want to do today is talk with you about a number of animals, from three different habitats that live in the presence of a toxic gas, hydrogen sulfide. Hydrogen sulfide is a naturally occurring compound. It smells like rotten eggs. If you walk out on the mud flats, you'll smell it. It occurs in many different environments. The interesting thing about hydrogen sulfide, biologically, is that it is a highly toxic molecule. It is toxic on the same level as cyanide. I ...

What do we know about communities of organisms thriving around vents and seeps on the Arctic sea floor? Vent and Seep Communities on the Arctic Seafloor Peter Vogt Naval Research Laboratory Washington, DC Email: vogt@qur.nrl.navy.mil This essay will also appear in a forthcoming report of the Arctic Council's working group on Conservation of Arctic Flora and Fauna (CAFF). Photograph of a starry skate and an ast ...

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Space Science News homeAstrobiologists To Hunt Small Game in Siberia Arctic permafrost may hold clues to life on other worlds July 27, 1999: Sleeping on the permafrost and drilling for ice doesn't sound like the ideal way to spend your summer. It's remote, it's cold, and the very name carries unpleasant memories of prison camps. But it's also an ideal place to look for life-forms that have learned survival tricks that might be in use on the permafrost and polar caps of Mars, Europa, Calli ...

Brain Strain Fun Stuff The Facts Other Site Map RSS Feed Guide to RSS Feeds Superbugs From Hell - Evolution Revisited New evidence suggests that the evolution of life on Earth not in shallow pools on the surface, but in the torrid depths of the planetary crust. And the planet in question might not even be the Earth... by Paul Davies For centuries, people thought life was created in the Garde ...