SciTechDaily: “Humans are a Greater Disturbance to Elk than Natural Predators” plus 10 more

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• Humans are a Greater Disturbance to Elk than Natural Predators
• Titan’s Icy Outer Crust is Likely Twice as Thick as Previously Believed
• Inherent Complexity of the Wheat Genome
• “Coughing” Scallops Are Early Warning System for Worsening Water Quality
• Voyager 1 Enters “Magnetic Highway,” The Final Area before Interstellar Space
• Drunken Larvae Learn Just as Well as Sober Larvae
• Why Older People Are More Susceptible to Fraud
• Vega Older Than Previously Thought, Could Harbor Life
• Special Fishing Weights Could Help Save Hammerhead Sharks
• Body Language is a Better Indicator of Intense Emotions than Facial Expressions
• Study Strengthens Link Between Human Activities and Climate Change

Humans are a Greater Disturbance to Elk than Natural Predators Posted: 04 Dec 2012 09:24 AM PST A new study has shown that elk become more fearful when people are around because they perceive humans as predators. The scientists published their findings in the journal PLOS ONE. The researchers studied elk (Cervus canadensis) in Alberta, Canada. The results come from a year-long study that tracked 424 herds and 870 individuals on public, [...] The post Humans are a Greater Disturbance to Elk than Natural Predators appeared first on SciTech Daily.

Titan’s Icy Outer Crust is Likely Twice as Thick as Previously Believed Posted: 04 Dec 2012 09:08 AM PST Using radar data by NASA’s Cassini spacecraft, a new analysis of Saturn's largest moon, Titan, suggests that it has an icy, rocky core with a radius of a little over 2,000 kilometers, an ocean somewhere in the range of 225 to 300 kilometers thick and an ice layer that is 200 kilometers thick. A new [...] The post Titan’s Icy Outer Crust is Likely Twice as Thick as Previously Believed appeared first on SciTech Daily.

Inherent Complexity of the Wheat Genome Posted: 04 Dec 2012 08:37 AM PST An international team has produced a rough draft of wheat’s DNA sequence. The draft identifies many of its genes and makes it possible to identify thousands of potential genetic changes that could improve this crop. It’s been long considered one of the most important crop genomes. The scientists published their findings in the journal Nature. [...] The post Inherent Complexity of the Wheat Genome appeared first on SciTech Daily.

“Coughing” Scallops Are Early Warning System for Worsening Water Quality Posted: 04 Dec 2012 08:16 AM PST Scallops cough to expel feces and water from their central cavities. The friction between the mollusk’s two valves makes a sharp crack, followed by a drawn-out puffing sound as the valves close. Biologists think that these coughs could serve as an early warning system for worsening water quality. The scientists published their findings in the [...] The post “Coughing” Scallops Are Early Warning System for Worsening Water Quality appeared first on SciTech Daily.

Voyager 1 Enters “Magnetic Highway,” The Final Area before Interstellar Space Posted: 04 Dec 2012 07:55 AM PST NASA’s Voyager 1 spacecraft entered a magnetic highway for charged particles, the final region before it reaches interstellar space. Pasadena, California — NASA’s Voyager 1 spacecraft has entered a new region at the far reaches of our solar system that scientists feel is the final area the spacecraft has to cross before reaching interstellar space. [...] The post Voyager 1 Enters “Magnetic Highway,” The Final Area before Interstellar Space appeared first on SciTech Daily.

Drunken Larvae Learn Just as Well as Sober Larvae Posted: 04 Dec 2012 07:30 AM PST Many studies suggest that the behavioral effects of alcohol in humans can be modeled in fruit flies and other animals. Scientists that were trying to see when these effects start to take place discovered that inebriated fruit fly larvae learned just as well as sober ones. The scientists published their findings in the journal Current [...] The post Drunken Larvae Learn Just as Well as Sober Larvae appeared first on SciTech Daily.

Why Older People Are More Susceptible to Fraud Posted: 04 Dec 2012 07:05 AM PST Researchers have discovered one of the reasons why it may seem like older people fall victim to financial fraud. Scientists have found out that the human ability to judge trustworthiness of people’s faces diminishes with age. The scientists published their findings in the journal Proceedings of the National Academy of Sciences. Shelley Taylor, psychologist at [...] The post Why Older People Are More Susceptible to Fraud appeared first on SciTech Daily.

Vega Older Than Previously Thought, Could Harbor Life Posted: 04 Dec 2012 06:45 AM PST Vega is situated in the constellation Lyra, 25 light-years away from Earth, and it is the fifth brightest star in the sky. In 1983, astronomers discovered dust orbiting Vega, suggesting that it had a solar system. Vega was thought to be only a couple of hundred million years old, probably too young for any planets [...] The post Vega Older Than Previously Thought, Could Harbor Life appeared first on SciTech Daily.

Special Fishing Weights Could Help Save Hammerhead Sharks Posted: 03 Dec 2012 10:41 AM PST The global population of hammerhead sharks, a group of sharks in the family Sphyrnidae, has plummeted by 89% in the last 20 years, largely due to illegal poaching and accidental fishing. Scientists have come up with a way to reduce the bycatch of hammerhead sharks. The scientists published their findings in the journal Fisheries Research. [...] The post Special Fishing Weights Could Help Save Hammerhead Sharks appeared first on SciTech Daily.

Body Language is a Better Indicator of Intense Emotions than Facial Expressions Posted: 03 Dec 2012 10:28 AM PST Intense emotional experiences are more easily read in body language than in watching facial expressions. Facial clues in most studies rely on a set of stylized, recognizable expressions, which don't reflect the expressions that people make in the real world. The scientists published their findings in the journal Science. Hillel Aviezer, a neuropsychologist at the [...] The post Body Language is a Better Indicator of Intense Emotions than Facial Expressions appeared first on SciTech Daily.

Study Strengthens Link Between Human Activities and Climate Change Posted: 03 Dec 2012 09:48 AM PST Comparing 20 of the latest climate models against 33 years of satellite data has lead the scientists of a newly published study to believe, with a high degree of certainty, that human activities are linked to climate change. New research shows some of the clearest evidence yet of a discernible human influence on atmospheric temperature. [...] The post Study Strengthens Link Between Human Activities and Climate Change appeared first on SciTech Daily.

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