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You are here: Home / Health / Top 10 Reasons to Love Viruses Viruses can often be seen in a very poor light, but they aren’t all bad. In fact, we humans probably wouldn’t exist without viruses. Author Michael Brooks writes about the upside of sharing the planet with these ruthless killer machines. Top 10 Reasons to Love Viruses
No Longer Human | Women’s Health Henrietta Lacks achieved a kind of immortality on February 9, 1951. On that day a sample of cancerous cells from her cervix was transferred to a culture dish, doused with nutrients, and left to grow. Lacks, a 30-year-old mother of four from Baltimore, had one of the most aggressive cervical cancers her doctors had ever seen, and the cells culled from her tumor grew avidly, doubling their number each day.
Biology | 7.03 Genetics, Fall 2004 | Lecture Notes
Cells flow like glass, study finds B y studying cellular movements at the level of both the individual cell and the collective group, applied physicists have discovered that migrating tissue flows very much like colloidal glass. The research, led by investigators at Harvard’s School of Engineering and Applied Sciences (SEAS) and the University of Florida , advances scientists’ understanding of wound healing, cancer metastasis, and embryonic development. The finding was published online Feb. 14 in Proceedings of the National Academy of Sciences . Cells often move from one part of the body to another. In a developing embryo, for example, cells in the three germ layers have to arrange themselves spatially so that the cells that will become skin are on the outside.
Scientists Discover Solar Powered Hornets - GoodCleanTech The oriental hornet is more active during the day, and tends to become even more active as the temperature rises. And now scientists have discovered the reason: the hornets are solar powered. It turns out that the distinctive yellow stripe on the hornet's abdomen is actually full of tiny protrusions that gather sunlight and harness it for energy.
Return to "Download Files" Page You are welcome to download the following graphic image of the Tree of Life for non-commercial, educational purposes: Tree of Life (~3,000 species, based on rRNA sequences) (pdf, 368 KB)