The largest animals ever to have walked the face of the earth just got a little smaller, according to a paper published today in the Zoological Society of London's Journal of Zoology.

Why aren't they as big as previously thought?   The researchers say that the original statistical model used to calculate dinosaur mass is flawed, which led to them suggesting dinosaurs have been oversized.  Widely cited estimates for the mass of Apatosaurus louisae, one of the largest of the dinosaurs, may be double that of its actual mass instead of the commonly cited 33-38 tons it may be as light as 18 tons. 

University of Georgia researchers have developed a successful way to grow molecular wire brushes that conduct electrical charges, a first step in developing biological fuel cells that could power pacemakers, cochlear implants and prosthetic limbs.

UGA chemist Jason Locklin and graduate students Nicholas Marshall and Kyle Sontag grew polymer brushes, made up of chains of thiophene and benzene, aromatic molecules sometimes used as solvents, attached to metal surfaces as ultra-thin films. 

Stem cell research is a major challenge for medicine. Recently, asymmetric cell division was filmed in vivo in fruit fly germinal stem cells for the first time by the team of Jean-René Huynh at the Institut Jacques Monod (CNRS/Université Paris Diderot), now working at the ‘Génétique du développement et cancer' laboratory (Institut Curie/CNRS/UPMC/Inserm). This paper on stem cell behavior was published in Nature Cell Biology.

When you are concentrating on something, neural "noise" may cause you to miss important changes in your environment, new research indicates, and this binocular rivalry which occurs when the two eyes view radically different images means the brain temporarily rejects, or suppresses, one of those images in favor of the other.

The image that commands our visual awareness switches between the two over time. This fluctuation in visual awareness enables cognitive neuroscientists to study the neural correlates of awareness and consciousness.

According to results of a study published in Cancer Prevention Research,  men with prostate cancer who consumed the active compounds in green tea demonstrated a significant reduction in serum markers predictive of prostate cancer progression. 

Green tea is the second most popular drink in the world, and some epidemiological studies have shown health benefits with green tea, including a reduced incidence of prostate cancer, according to Cardelli.

However, some human trials have found contradictory results. The few trials conducted to date have evaluated the clinical efficacy of green tea consumption and few studies have evaluated the change in biomarkers, which might predict disease progression.

Sperm bigger than the actual creator of the sperm and phallic mushrooms have been all the rage this week, but immobilized microbes that can break down potentially harmful Phthalic Acid Esters (PAEs), commonly known as phthalates, are big news too, according to researchers writing in the International Journal of Environment and Pollution.   So now we get to talk about phthalic symbols.