Ten Recent Advances in Evolution By Carl Zimmer Posted 10.26.09 NOVA To celebrate the 150th anniversary of the Origin of Species, here's a list—by no means exhaustive—of some of the biggest advances in evolutionary biology over the past decade. These advances include not just a better understanding of how this or that group of species first evolved, but insights into the evolutionary process itself. In some cases those insights would have given Darwin himself a pleasant jolt of surprise. Ten significant leaps forward in evolution research in the past decade, as chosen and described by noted science writer Carl Zimmer Enlarge Photo credit: (Earth) © NASA; (text) © WGBH Educational Foundation Darwin envisioned natural selection acting so slowly that its effects would be imperceptible in a human lifetime. If he were alive today, Darwin would be astonished at the pace and nature of discoveries being made in evolutionary biology, including the witnessing of evolution in action.
DNA from the Beginning - An animated primer of 75 experiments that made modern genetics. 6 Virtual Tours Of The Human Body For Free Interactive Anatomy Lessons When it comes to interactive virtual views, we have gone to space and around the globe. So, it’s not surprising that we are also going within ourselves on a virtual journey of the human body. One of the finest tools available online is Visible Body. Unfortunately, it’s not free anymore. But you can see the beauty of it thanks to the free demo that allows you to explore the head and neck. If you are disappointed that there aren’t any free interactive anatomy tools, worry not. Google Body You can trust Google to take you everywhere. The Google Body browser is a Google Labs project that renders on Google Chrome and any other browser that supports WebGL (like Firefox 4 Beta). MEDtropolis The interactive website aims to educate entertain both kids and adult on bodily health; understanding the human anatomical structure is just part of the process. For instance, check out the narrated tours on Virtual Body. eSkeletons eSkeletons isn’t only about understanding human anatomy. DirectAnatomy
Cell Cycle & Cytokinesis - BioChemWeb.org Cell Cycle Regulation and the Control of Cell Proliferation (Cell Growth + Cell Division) Cell Cycle Research - General resource with links to relevant recent literature, news and job listings. (Ion Channel Media Group) Cell Division - Undergraduate-level lectures on cell division. See also the Apoptosis, Cell Senescence and Signal Transduction pages. Mitosis, Meiosis and the Mechanics of Cell Division See also the Cytoskeleton, Cell Motility and Motors page. Cancer Resources A major component of cancer progression is the loss of normal controls on cell proliferation (disruption of normal cell cycle regulation and cell signaling), in addition to other changes involving angiogenesis, cell adhesion, invasion and metastasis. See also the Tumor Cell Invasion and Metastasis section of the Cytoskeleton, Cell Motility and Motors page and the Angiogenesis, Cell Adhesion and Extracellular Matrix and Signal Transduction pages. Labs Studying Visits:
Brain Tour | Your Amazing Bran The first stop on the virtual brain tour takes a look at the three main parts of the brain, the cerebral cortex, the cerebellum and the brain stem. It also explores the four brain lobes: the frontal lobe, the parietal lobe, the temporal lobe and the occipital lobe. The first part of the brain to evolve some 500 million years ago was the brain stem. It is also known as the reptilian brain or lower brain. Certain ‘hardwired’ body functions e.g., breathing and blood pressure, as well as some basic human instincts like danger are controlled by the lower brain. The cerebellum evolved about 400 million years ago and is also known as the hind brain. The limbic brain (we will explore this brain in detail later) was the third part of the brain to evolve between 300 and 200 million years ago and is sometimes called the mid brain. The final part of the brain to evolve was the cerebrum (cerebral cortex), also called the upper brain. Each half of the cerebrum is split into four lobes. Parietal Lobe
educreations teacherswithapps Educreations Interactive Whiteboard, by Educreations, Inc, is an incredible, yes that’s right, INCREDIBLE app. This newly released app comes with the huge bonus of being FREE! We think this app has the edge needed to push education in the right direction and to begin modernizing teaching as we know it. Educreations is not the first app using the whiteboard concept, but it is the first one geared specifically for the classroom. Educreations Inc had the wherewithal to realize the need to add the option to use multiple pages for the same lesson; this is another feature that makes this app a standout. This revised Bloom’s Taxonomy pyramid shows classification of levels of intellectual behavior that is important in the learning process. It is obvious that the developers in this new start-up company spent much time and consideration while incorporating user-friendly features into this app.