User:Tillman/Favorite minerals From Wikipedia, the free encyclopedia Favorite mineral photos Goethite after pyrite, Utah Blue fluorite, China Copper "sword", Kazakhstan Mockingbird Mine, California Johachidolite, a calcium aluminum borate, from Burma. Per Rob Lavinsky, "this specimen is an incredible rarity." The Adventures Of Tom Sawyer by Mark Twain 1 previous: Preface No answer. "What's gone with that boy, I wonder? You TOM!" The old lady pulled her spectacles down and looked over them about the room; then she put them up and looked out under them. ECOLEX gateway to environmental law English Français Español Select one or more databases for simple or advanced search ECOLEX is a database providing the most comprehensive, global source of information on environmental law. ECOLEX is operated jointly by FAO, IUCN and UNEP. Please feel free to contact us at ECOLEX@iucn.org if you have any suggestions or experience any difficulties.
WWF In the time is takes you to read this page, one of our planet’s unique species will become extinct. By this time tomorrow, a further 150–200 will have disappeared forever. And by this time next year, over 50,000 more. This alarming rate of extinction is 100-1,000 times, and perhaps even 11,000 times, greater than the expected natural rate.
Extreme Environments - StumbleUpon People Get Thirsty in Winter, Too by Karen Berger from GORP In cold weather camping, one of the best things you can do to stay healthy is develop a drinking habit. I'm talking water, not wine. Adequate hydration is key to avoiding hypothermia and altitude sickness. Cubic Symmetric Graph A cubic symmetric graph is a symmetric cubic (i.e., regular of order 3). Such graphs were first studied by Foster (1932). They have since been the subject of much interest and study. Since cubic graphs must have an even number of vertices, so must cubic symmetric graphs.
Climate Change Knowledge Portal 2.0 Explore and use a collection of development, vulnerability, and impact-related indicators and datasets. Climate Adaptation Country Profiles provide a quick reference source for development practitioners to better integrate climate resilience into development planning and operations. Learn from several examples of emerging economies actively seeking to move toward a low carbon growth path. Tour the portal highlights in these development and climate change storylines. And take them with you! Use your creativity to integrate, visualize, and synthesize climate and development data. Endangered Species You Are Here: Endangered Species Home » Interactive Website View our new interactive map to learn about endangered species success in your state or territory.
Profiles of microorganisms: the microbial world We should note a technical point about this tree: the comparison of ribosomal RNA gene sequences can show the possible relatedness of organisms, but other information is needed to provide the root of a tree. One of the principal modes of evolution is thought to involve gene duplication followed by divergence. The original gene retains its vital function, while the copy can change and ultimately can encode a new function. If these paralogous gene pairs can be identified by sequence similarity, then the original gene should be present in all organisms whereas the new version will be present only in the more recently derived organisms. The root for the tree in the diagram above was determined by using paralogous genes for translation elongation factors involved in synthesis of protein chains on the ribosomes. Domains and Kingdoms