Ancestral Lines Evolutionary biologists use a cladogram, the treelike diagram of evolutionary branches or clades, to organize species into lines of evolutionary descent across time. Biologists use three types of evidence to deduce evolutionary connections: genetics, morphology, and geologic dating. (Behavior, normally a key part of evolutionary studies, can only be inferred in extinct species — for example, by examining the ecology in which the species flourished and the species adaptations for eating and locomotion.) Analyses of primate fossils and the genetic relatedness of living primates converge to the conclusion that humans and chimpanzees branched from a common ancestor about 7 million years ago. DNA recovered from several uncontaminated Neanderthalensis fossils indicated that modern humans and extinct neanderthals diverged about 400,000 years ago; but more recent studies show that they must have interbred within Europe or the Middle East since then.
Unique ancient spider attack preserved in amber Researchers have found what they say is the only fossil ever discovered of a spider attack on prey caught in its web -- a 100 million-year-old snapshot of an engagement frozen in time. The extraordinarily rare fossils are in a piece of amber that preserved this event in remarkable detail, an action that took place in the Hukawng Valley of Myanmar in the Early Cretaceous between 97-110 million years ago, almost certainly with dinosaurs wandering nearby. Aside from showing the first and only fossil evidence of a spider attacking prey in its web, the piece of amber also contains the body of a male spider in the same web.
Row Three & Brave New Worldview - 30 Science Fiction Films of the 21st Century - StumbleUpon A decade into the 21st Century and we have arrived at the future. The promise of Tomorrow. But instead we have looming energy crises, endless middle east conflict and more disappointing, we have no flying cars, Heck, for all the bright and clean future promised in 2001: A Space Odyssey, none of the real companies used as brands in the film even exist anymore. Even moving from the late 1960s to the mid 1980s, nobody makes DeLoreans (although they occasionally sell on Ebay), but cloning and tablet computing (as promised by Star Trek: The Next Generation) have more or less come to pass in this century. It is not the gizmos or the distopian aesthetics, that have brought Science Fiction into the new millennium, but the questions it asks of people or society in a future time or place and how they reflect on our own times. There have been a surprising number of excellent science fiction films to come about in the past decade that do this and do this well.
Does the Color Pink Exist? Scientists Arent Sure In a blog post, Robert Krulwich of the public radio show Radiolab noted that there is no pink in the colors of the rainbow. Pink is actually a combination of red and violet, two colors, which, if you look at a rainbow, are on the opposite sides of the arc. Remember the old colors of the rainbow mnemonic ROYGBIV?
The Meaning of Life Revealed! -This post is excerpted, with changes, from the book Darwin, God and the Meaning of Life by Steve Stewart-Williams - available now from Amazon.com , Amazon.ca , and Amazon.uk . Evolutionary theory answers one of the most profound and fundamental questions human beings have ever asked themselves, a question that has plagued reflective minds for as long as reflective minds have existed in the universe: The question was answered in 1859 by the English naturalist Charles Darwin, and the answer can be stated in just six words: "What?" The Tree of Life If you want a hardcopy of this poster, you can either (1) download the PDF file here for free and take it to a print shop (Kinkos will work) and get it printed as a large poster (it prints 24" x 48"), or (2) buy it online at Zazzle.com (click here to jump to the poster). The words in the image above may look a bit blurry because this web page is displaying a compressed JPEG image on this web site (to improve download time). If you make a print from the PDF file (or zazzle) all the words and lines will be crisp and clear. I created the poster with the Xara Xtreme drawing program. Keywords: Tree of Life, evolution, cladogram, cladistics, darwin, phylogenetic tree, phylogenetics, evolutionary tree, darwin, poster.
World Heritage Centre #: As for 19 Natural and Mixed Properties inscribed for geological values before 1994, criteria numbering of this property has changed. See Decision 30.COM 8D.1 How to grow a Rainbow Rose, Naturally - StumbleUpon In 2004, two dutch companies, River Flowers and F.J. Zandbergen, experimented and successfully grew a rose that had its petals rainbow colored. As petals get their nourishment through stem, the idea is to split the stem into several channels and dip each one in a different colored water. This way all the colors will be drawn by the stem into petals and resultant rose will have all the colors in it. The same method can be applied to other flowers especially to Chrysanthemum and Hydrangea. You can use the same idea to color any flower, anyway you like.
What would happen if I drilled a tunnel through the center of th& Want to really get away from it all? The farthest you can travel from home (and still remain on Earth) is about 7,900 miles (12,700 kilometers) straight down, but you'll have to journey the long way round to get there: 12,450 miles (20,036 kilometers) over land and sea. Why not take a shortcut, straight down? You can get there in about 42 minutes -- that's short enough for a long lunch, assuming you can avoid Mole Men, prehistoric reptiles and underworld denizens en route. Granted, most Americans would end up in the Indian Ocean, but Chileans could dine out on authentic Chinese, and Kiwis could tuck into Spanish tapas for tea [sources: NOVA; Shegelski]. Of course, you'd be in for a rough ride.
'Lucy's baby' rattles human evolution The skull of the juvenile Australopithecus afarensis, dubbed 'Lucy's baby' Credit: Zeresenay Alemseged/Authority for Research and Conservation of Cultrual Heritages SYDNEY: The discovery of an infant human ancestor, dubbed ‘Lucy’s baby’, will shake up our understanding of human evolution, according to its finders in Dikika, Ethiopia. Two articles published today in the British journal Nature identified the fossil remains – the oldest and most complete infant skeleton found to date – as those of a three-year-old girl who lived 3.3 million years ago. She belongs to the species Australopithecus afarensis, of which the iconic adult skeleton, nicknamed ‘Lucy’, is also a member. “The Dikika girl stands as one of the major discoveries in the history of palaeoanthropology,” research team leader Zeresenay Alemseged said, citing the remarkably well-preserved condition of the bones, the geological age and completeness of the specimen.
The Origin and Evolution of Life the basic outline of the origin of life is believed to be: formation of earth 4.6 bya formation of monomers (simple amino acids, sugars, etc) formation of polymers (proteinoids, nucleic acids, etc) lipid synthesis for membranes (phospholipids) formation of a protobiont How To Use a Compass - when you have no compass.... - StumbleUpon Kjetil Kjernsmo's illustrated guide on Finding the directions without a compass You are lost. I mean really lost. 5 Ways To Hack Your Brain Into Awesomeness Much of the brain is still mysterious to modern science, possibly because modern science itself is using brains to analyze it. There are probably secrets the brain simply doesn't want us to know. But by no means should that stop us from tinkering around in there, using somewhat questionable and possibly dangerous techniques to make our brains do what we want. We can't vouch for any of these, either their effectiveness or safety.
Human Evolution: The fossil evidence in 3D Welcome to the UCSB online 3D gallery of modern primate relatives and fossil ancestors of humans. This gallery contains five modern primate crania, and five fossil crania. The crania can be rotated 360 degrees.