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. ToL pages are linked one to another hierarchically, in the form of the evolutionary tree of life. Starting with the root of all Life on Earth and moving out along diverging branches to individual species, the structure of the ToL project thus illustrates the genetic connections between all living things.
Google Earth phylogenies Now, for something completely different. I've been playing with Google Earth as a phylogeny viewer, inspired by Bill Piel's efforts, the cool avian flu visualisation Janies et al. published in Systematic Biology (doi:10.1080/10635150701266848), and David Kidd's work. As an example, I've taken a phylogeny for Banza katydids from Shapiro et al. (doi:10.1016/j.ympev.2006.04.006), and created a KML file. I've converted COI branch lengths to altitude, and elevated the tree off the ground to accomodate the fact that the tips don't all line up (this isn't an ultrametric tree). Wouldn't it be fun to have a collection of molecular trees for Hawaiian taxa for the same gene, plotted on the same Google Earth map? Generating the KML file is fairly straightforward, and if I get time I may add it to my long neglected TreeView X.
Map Viewer I'm Dr. Josiah Zayner, former Scientist at NASA turned bioHacker who recently attempted a full-body microbiome transplant, Ask me Anything : IAmA Main Page - EvoWiki Un caryotype en quelques clics.- Sciences de la vie et de la Terre Type de support : animation gratuite Auteur : Fabien Sauvion /école de l’ADN Poitou-Charentes /images CHU de Poitiers Description :Le logiciel simule le travail d’une cytogénéticienne lors de l’établissement d’un caryotype, c’est à dire qu’à partir d’une image de cellule en division, l’ordinateur classe rapidement l’essentiel des chromosomes et ne laisse plus à l’élève que quelques chromosomes à classer. En quelques clics, l’élève va alors pouvoir vérifier si il a bien compris le principe du caryotype.Ensuite, un autre caryotype à faire est proposé puis un troisième qui présentent tous deux une anomalie chromosomique qui va mettre l’élève devant une difficulté à résoudre... le logiciel : caryotype(Flash de 231.5 ko) animation à lire dans un lecteur flash à jour caryotype(Zip de 1 Mo) logiciel complet à décompresser Intégrer cette animation dans un scénario pédagogique
Identification and analysis of unitary pseudogenes... [Genome Bi A Bitter Pill By Arielle Duhaime-Ross | Photography by Vjeran Pavic Human feces floated in saline solution in a mortar, on a marbled countertop, in a dimly lit kitchen in Burlingame, California. A bottle of ethyl alcohol, an electronic scale, test tubes, and a stack of well-worn pots and pans lay nearby. The stove light illuminated the area as Josiah Zayner crushed the shit with a pestle, creating a brownish-yellow sludge. "I think I can feel something hard in there," he said, laughing. It was probably vegetables — "the body doesn’t break them down all the way." This heralded the beginning of Zayner’s bacterial makeover. Over the course of the next four days, Zayner would attempt to eradicate the trillions of microbes that lived on and inside his body — organisms that helped him digest food, produce vitamins and enzymes, and protected his body from other, more dangerous bacteria. Zayner unwrapped a brand-new syringe and filled its barrel with the brownish liquid. So far, so good.
Revive & Restore | Extinct species back to life The GreatPassenger PigeonComeback Male passenger pigeon, painting by Tim Hough. News & updates on the project using museum-specimen DNA to bring this iconic species all the way back. Extinction Continuum Learn about the genetic situation of a variety of endangered and extinct animals and how biotechnologies might be applied. A continuum of genetic predicaments is matched with a continuum of genetic rescue techniques.Explore the interactive continuum. Criteria Checklist Can a particular extinct species be revived? Never Say Never Extinct heath hen Gazette archives “Heath Hen May Get Its Boom Back” Revive & Restore posed the question of bringing the heath hen back to Martha’s Vineyard. TEDx Videos On March 15, 2013 at National Geographic, twenty-five extraordinary talks by leading scientists and conservationists were captured on video on the concept of de-extinction. Watch TEDxDeExtinction Videos Stewart Brand’s TED Talk Become a Supporter JOIN our growing band of supporters today! Revivors Mailing List
The Origin and Evolution of Cells - The Cell - NCBI Bookshelf National Center for Biotechnology Information Tree of Life | Wellcome Trust