IGF Microbial Life - Educational Resources Teaching and learning about the diversity, ecology and evolution of the microbial world; discover the connections between microbial life, the history of the earth and our dependence on micro-organisms. The expansive Sunset Lake of the Black Sand Basin is one of the largest thermal bodies of water in Yellowstone National Park. Details This site contains a variety of educational and supporting materials for students and teachers of microbiology. Microbial Life in Extreme Environments: Mammoth Terraces, Yellowstone National Park. Microbial Life in Marine Environments: Pancake ice in Ross Sea, Antarctica. Find out more about the myriad of microorganisms that live in marine environments. Microbial Observatories: MO study site at Conch Reef, Key Largo. Explore profiles of several microbial observatories, NSF-funded projects dedicated to the discovery and characterization of novel microorganisms and microbial communities of diverse environments. Research Methods: Euastrum agalma. Micro*scope:
UNEP-WCMC Tree of Life Web Project The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny). Each page contains information about a particular group, e.g., salamanders, segmented worms, phlox flowers, tyrannosaurs, euglenids, Heliconius butterflies, club fungi, or the vampire squid.
The Environmentalist Cell Size and Scale Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. A magnifying glass can help you to see them more clearly, but they will still look tiny. Smaller cells are easily visible under a light microscope. To see anything smaller than 500 nm, you will need an electron microscope. Adenine The label on the nucleotide is not quite accurate. How can an X chromosome be nearly as big as the head of the sperm cell? No, this isn't a mistake. The X chromosome is shown here in a condensed state, as it would appear in a cell that's going through mitosis. A chromosome is made up of genetic material (one long piece of DNA) wrapped around structural support proteins (histones). Carbon The size of the carbon atom is based on its van der Waals radius.
Association pour la sauvegarde de la biodiversité TENDUA a été créée en 2008, après un voyage en Inde où, en dépit de nombreux parcs nationaux, la faune sauvage et ses habitats sont menacés. Le constat est malheureusement planétaire : partout dans le monde, la biodiversité est en danger, sur terre et dans les mers. La 6e extinction majeure de biodiversité est en cours : en 150 ans l’homme a réussi à détruire son environnement comme il ne l’avait jamais fait auparavant. Les précédentes extinctions connues des scientifiques étaient le résultat d’un processus évolutionnaire ; or aujourd’hui, l’équilibre de la planète est menacé par les activités humaines. En août 2013, il a été estimé que l’humanité, par sa consommation effrénée, a dépassé la capacité de régénération de la Terre. Cela étant, nous n’avons plus le temps d’être pessimistes. Une nouvelle relation entre l’homme et la nature TENDUA propose à chacun de réfléchir à un nouveau type de relation entre l’homme et la nature. Adhésions et partenariats Comment adhérer ?
Wikispecies - the species directory SFE : la Société Française d'Écologie Nature Institute: Viewing Nature, Science, and Technology in Context