People from distant lands have strikingly similar genetic traits, study reveals
...on environmental factors, cultural differences and behaviors which may be important risk factors for certain diseases."...Could an anti-marijuana compound hold the key to body weight and appetite control?
...716 has been shown to produce changes in ingestive behaviors when administered alone. Several studies have reported that SR141716 selectively attenuates the consumption of palatable food or drink. It decreases sucrose intake in rats, alcohol consumption in mice and sweet diet intake in marmosets while having l...Toy choice among boys, girls a matter of monkey business
...e doll and pot has been proposed to elicit female behaviors toward infants that enhance infant survival, such as contact. Alexander says that the stereotyping of toys in society probably unknowingly builds on these types of innate preferences....UMass scientist identifies gene that governs obesity, physical activity, sex behaviors in mice
...play a role in obesity, physical activity, and sex behaviors in mice. Good works with so-called "knock-out" mice, which have a specific gene deleted. Scientists then monitor the animals for changes in their physiology and behavior, in an effort to determine the gene's role. Her findings are detailed in the cur...Three inferior prefrontal regions of the brain found receptive to somatosensory stimuli
...bes. Its outputs permit it to affect a variety of behaviors and physiological responses, including emotional responses organized by the amygdala. However, there is still much that we do not know about this important part of the brain. Research has shown that three inferior prefrontal regions of the monkey's ...Mole-rat Methuselahs push evolutionary theory of aging
...d exercise, proper medical care and avoiding risky behaviors may extend lives a bit. But nothing we can do in our lifetimes or many more to come is likely to stop senescence." Evolutionary biologists define the term as the persistent decline in fitness components with age, due to internal physiological deterio...A genetic basis for aggression and anger
...y contrast, they perform normally in all the other behaviors that we have examined, such as sexual behavior, suggesting that reduced aggression and social memory are not simply the result of a global deficit in sensorimotor function or motivation. Fos-mapping within chemosensory responsive regions suggests tha...UT Southwestern scientist helps identify neurons in worms that control link between stress, eating
...de strides in understanding the significance group behaviors have had on ecological and evolutionary processes, little research has been done on the basic neural mechanisms underlying this behavior. Avery and other researchers were able to show that whether the worms ate alone or in groups was dictated by the...Purdue veterinarian studies compulsive behavior in dogs
...TE, Ind. -- Dogs' quirky, unexplainable repetitive behaviors can be part of an anxiety condition known as canin...er. Dogs with the disease often display compulsive behaviors such as tail chasing, snapping the air, licking excessively, chewing with an empty mouth and barking...NSF awards $37.9 million in grants to study biocomplexity in the environment
...plete understanding of natural processes, of human behaviors and decisions in the natural world, and of ways to use technology effectively to observe the environment and to sustain the diversity of life on earth. This systems approach is the crux of biocomplexity studies, believes Colwell. Scientists and eng...Linking alcohol drinking patterns to specific genes
...A new study examines drinking patterns and related behaviors among alcoholics and nonalcoholics. A gene on chro...l Research examines drinking patterns and related behaviors among alcoholics and nonalcoholics in order to develop quantitative phenotypes, which are subsequent...Sex and genetics: Why birds are unfaithful to their partners
...e genetically similar use alternative reproductive behaviors to avoid paying the price of inbreeding. Combining field observations on free-living populations of three shorebirds with molecular methods to determine parentage and relatedness between the partners they found that extra-pair parentage occurred when...Purdue creates self-generating nanotubes with 'dial-up' properties
...rties, the Fenniri team discovered some unexpected behaviors their nanotubes exhibit. "We have found that the nanotubes promote their own formation," Fenniri said. "Such behavior is very reminiscent of living systems, in that they replicate and adapt to their environment." Realizing that their homegrown nano...Deciphering the genetic basis of the mosquitos senses
...o could very well be involved in mosquito-specific behaviors such as blood feeding, host preference and tracking," says Zwiebel. In addition to the strong preference for human blood meals that is characteristic of A. gambiae, there are many closely related mosquito species that seek out other animals, includin...Scientists discover genetic defect responsible for microcephaly
...ion, cry, muscle tone, suck and swallow. They have behaviors typical of the normal newborn it can be quite amazing. But on MRI, it's fairly obvious that there is an arrest in the development of the brain that is quite profound, particularly in the upper part of the brain, the cerebrum. It's an arrested develo...Rockefeller researchers provide the first functional evidence for mammalian pheromone receptors
...cal signals that influence social and reproductive behaviors - have been studied since the 1950s, but the molec...same test situation. The researchers studied four behaviors in the male mutant mice, and found two of these to be affected in the mutant mice. A first assay tes...Tagging the great white shark...and a few of his friends
...re and why, what their migration routes and diving behaviors might be, and what might be going on in the ocean ...oven enormously successful. Animal movements and behaviors can be linked to oceanographic processes by integrating biological and physical data providing both ...MIT team probes arsenic and old lakes
... iron oxides, so they are expected to have similar behaviors in lakes. Hemond further expects that nitrate pollution could be important in groundwater or marine systems contaminated by arsenic. The two researchers emphasize the significant contributions of earlier students and other faculty. "I came in after ...New drug that enhances glutamate transmission in the brain being evaluated for fragile X
...unctioning of the brain, autism and its associated behaviors have been estimated to occur in as many as 2 to 6 in 1,000 individuals. Autism is four times more prevalent in males than in females. A variety of scientific evidence suggests that increasing glutamate neuronal transmission may be beneficial in auti......f response threshold, the orientation pathways and behaviors differed for the two species. Hammerheads typically demonstrated a pivot orientation in which the edge of the cephalofoil closest to the dipole remained stationary while the shark bent its trunk to orient to the center of the dipole. In contrast, san...