It's hard to visualise but the intelligent and ever-friendly dolphin can also be a determined killer.
New evidence has been compiled by marine scientists that prove the normally placid dolphin is capable of brutal attacks both on innocent fellow marine mammals and, more disturbingly, on its own kind.
From PCWorld:
Common experience tells us that particular scents of childhood can leave quite an impression, for better or for worse. Now, researchers reporting the results of a brain imaging study show that first scents really do enjoy a "privileged" status in the brain. (Credit: iStockphoto/Olga Solovei)
From Live Science:
From Slate.com:
From Threat Level:In a show set to air Sunday night, CBS blames a two-day outage in Espirito Santo in 2007 on a hack attack. The blackout affected three million people. Another, smaller blackout north of Rio de Janeiro in January 2005 was also triggered by computer intruders, the network claims.
(Dan Vasconcellos) 
Super Sight: The same technology used in the Hubble telescope could offer LASIK patients better sight. Ophthalmologists can use this technology to perform "custom" surgery to correspond to the patient's lifestyle. Getty Images
Neurogrid 65,536 artificial neurons packed onto just
Regular tea drinking could help lead to "reduced mortality, a lower risk of
Low-frequency receiving tiles will be surrounded by high-frequency receiving dishes
From The Baltimore Sun:The International Space Station is back in our evening skies, and on Sunday evening the big contraption will be flying up the East Coast and almost directly over Baltimore. (And even more directly over Ocean City.)
The weather forecast is quite promising for this pass, and the station will appear especially bright, even in badly light-polluted urban settings. It's also a convenient early-evening pass, so sky watchers will have no excuse not to step outside with the kids and get a look at your (and their) tax dollars at play.
An oil pump taps deposits of petroleum deep beneath the Earth. Scientists are reporting new evidence that oil may have originated from processes other that the decay of prehistoric plants. (Credit: Wikimedia Commons)
From Live Science:
From Slate:
COOKIE!!!
Cookie Monster is no doubt the least good-for-you part of Sesame Street but it was always my favorite. And then there’s Oscar the Grouch, who’s already been the subject of a Geek Dad post.One of us.
Likely the Cookie Monster is the favorite of many others too, since Google placed him on their homepage to celebrate the show’s 40th anniversary, which is Tuesday, November 10, as new segments will begin airing on PBS stations. There are preview clips available at the official website linked above but, be warned, there is video that turns on instantly, so if you’re not in the mood for Ernie, you might want to hit the mute button.
Image: Whole-genome sequencing could be affordable and accurate enough to perform on every newborn with a simple heel-prick blood test in a matter of years.
This image of the remnants of an exploded star was taken by NASA's Chandra X-ray Observatory, astronomers. By studying it, astronomers gained a better understanding of new details about the role of supernova remnants as the Milky Way's super-efficient particle accelerators. (NASA/CXC/University of Ultrech/J.Vink/AFP) 
Powered by Powdered Aluminum: This test rocket soared 1300 feet into the air using seven inches of a new, environmentally friendly fuel made of nanoaluminum and ice. Purdue University/Steven Son
Field Day: Magnets always have a north pole and a south pole. Physicists have managed to separate them in unusual materials called spin ices, enabling each pole to move freely. Cordelia Molloy Photo Researchers, Inc.
From The Telegraph:
iPhone users can now choose from 100,000 different applications
Macaques find fake monkeys creepy
Sixteenth century glass beads are among the rare artifacts discovered at Fernbank Museum of Natural History's archaeology site, which scholars believe is a stop along Hernando de Soto's trek through the Southeast in 1540. (Credit: Dan Schultz/Fernbank Museum of Natural History)
An ancient Mayan Pyramid at Chchen Itza. The Mayan calendar ends in 2012, but Mayans never predicted the world would end. Rather, the ending of their calendar is rather like how our Gregorian calendar ends each Dec. 31. Credit: Stockxpert2012 is coming very soon. The movie, that is — the disaster film directed by Roland Emmerich depicting global catastrophe of Biblical proportions. The year itself is of course a few dozen months away, and there is growing interest, excitement, and concern for both events.
The film "2012," which opens Nov. 13, takes place, rather obviously, in the year 2012, though it could have been set in 1995 or 2013. The movie's disasters have no particular link to that year, it's just when the Earth happens to start burping earthquakes and farting fire. 2012 made a perfect promotional hook for the film, because the ancient Mayans predicted that the world would end that year, if not specifically on December 21, 2012.
China's Rocket Pioneer: Left: A Chinese Long-March 4-B rocket blasts off on Nov. 6, 2004. Right: Chinese Premier Wen Jiabao visits Qian Xuesen on August 2, 2008. Xinhua
Cloud-seeding is a controversial practice common in Russia and China. Getty
Doses of nanoparticles used in the study were higher than anything a human might be exposed to.
INVISIBLE OR NONEXISTENT? A composite image of the galaxy cluster Abell 520 shows the inferred presence of matter, primarily dark matter, in blue. X-ray: NASA/CXC/UVic./A.Mahdavi et al.; Optical/Lensing: CFHT/UVic./A.Mahdavi et al.
This supernova was captured by Nasa's Chandra X-Ray Observatory. The neutron star is the blue dot at the centre of the picture
From Sci-Tech Today:
Photo: Science and Innovation Minister Lord Drayson test drives the T.27
The Matterhorn, in the Alps. (Credit: iStockphoto)
A 500-metre-long crack opened up in just a few days in Afar, Ethiopia, in 2005
The skies are ours, for now: the Arecibo Observatory has a window of opportunity to view the sky at frequencies previously masked by TV (Image: Seth Shostak/SPL)
Cyborg Eyes Tests on the cyborg astrobiologist suit involve real-time color-based novelty detection using a field-capable digital microscope. An AI integrated spacesuit using the technology could help a manned mars mission search for sign of life on Mars' hostile surface. P.C. McGuire, arXiv:0910.5454. 
Photograph courtesy Saxony-Anhalt State Office for Heritage Management and Archaeology
A spokesman for CERN told The Times: 'Nobody knows how it got there. The best guess is that it was dropped by a bird, either that or it was thrown out of a passing aeroplane'
An unusual neutron star appears to be covered in a thin atmosphere of carbon. Cassiopeia A appears in this photo, with the neutron star at its center highlighted in the right-hand corner. Chandra image: NASA/CXC/Southampton/W.Ho; Illustration: NASA/CXC/M.Weiss 
Supermassive black holes are found at the centre of galaxies. Credit: NASA/JPL-Caltech
Image showing the extent of new nerves (green) that regenerated after treatment with the enzyme. (Credit: Image courtesy of Ravi Bellamkonda)
Comparison between Neanderthal and modern human skeletons. Photo: K. Mowbray, Reconstruction: G. Sawyer and B. Maley, Copyright: Ian Tattersall
'No one has ever really known how the elephant got its trunk, or how the leopard got its spots. This project will lay the foundation for work that will answer those questions and many others,' says Dr David Haussler
Photo: Spray-on skin: In a unique treatment for second-degree burns, surgeons harvest a small number of skin cells through a skin biopsy, suspend them in solution, and then spray the resulting mixture onto a burn wound. Once in place, skin stem cells, called basal cells, proliferate to create a new layer of skin. Credit: ReCell
Photo: Michael Waine / Corbis