ScienceDaily: Strange Science News

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• Variation found in foot strike patterns in predominantly barefoot runners
• Brown eyes appear more trustworthy than blue: People judge men's trustworthiness based on face shape, eye color
• Deal or no deal: Five year olds make smart decisions in games of risk
• Baby sharks stay still to avoid being detected by predators
• Machine perception lab shows robotic one year old on video
• Nursing gerbils unravel benefit of multiple mothers in collective mammals
• Networking ability a family trait in monkeys
• Used coffee grounds are a rich source of healthful antioxidants
• Chemical modules that mimic predator-prey and other behaviors devised
• News from the world of quantum physics: A non-causal quantum eraser
• The Teotihuacans exhumed their dead and dignified them with make-up

Variation found in foot strike patterns in predominantly barefoot runners Posted: 09 Jan 2013 03:58 PM PST A recently paper shows that the running foot strike patterns vary among habitually barefoot people in Kenya due to speed and other factors such as running habits and the hardness of the ground. These results are counter to the belief that barefoot people prefer one specific style of running.

Brown eyes appear more trustworthy than blue: People judge men's trustworthiness based on face shape, eye color Posted: 09 Jan 2013 03:58 PM PST People view brown-eyed faces as more trustworthy than those with blue eyes, except if the blue eyes belong to a broad-faced man, according to research published Jan. 9 in the open-access journal PLOS ONE by Karel Kleisner and colleagues from Charles University in the Czech Republic.

Deal or no deal: Five year olds make smart decisions in games of risk Posted: 09 Jan 2013 03:58 PM PST You may have to be over a certain age to be a contestant on "Deal or No Deal", but children as young as five start to maximize their profits -- in cookies -- when making decisions similar to those on the show, according to new research.

Baby sharks stay still to avoid being detected by predators Posted: 09 Jan 2013 03:58 PM PST Baby sharks still developing in their egg cases can sense when predators are near, and keep very still to avoid being detected, according to new research.

Machine perception lab shows robotic one year old on video Posted: 09 Jan 2013 03:56 PM PST The world is getting a long-awaited first glimpse at a new humanoid robot in action mimicking the expressions of a one-year-old child. The robot will be used in studies on sensory-motor and social development – how babies "learn" to control their bodies and to interact with other people.

Nursing gerbils unravel benefit of multiple mothers in collective mammals Posted: 09 Jan 2013 08:06 AM PST In mammals such as rodents that raise their young as a group, infants will nurse from their mother as well as other females. Ecologists have long thought this lets newborns stockpile antibodies to various diseases, but experimental proof has been lacking until now.

Networking ability a family trait in monkeys Posted: 09 Jan 2013 08:06 AM PST Two years of painstaking observation on the social interactions of a troop of free-ranging monkeys and an analysis of their family trees has found signs of natural selection affecting the behavior of the descendants.

Used coffee grounds are a rich source of healthful antioxidants Posted: 09 Jan 2013 08:00 AM PST To plant food, insect repellant and other homespun uses for spent coffee grounds, scientists are adding an application that could make the gunk left over from brewing coffee a valuable resource for production of dietary supplements. A new report concludes that used coffee grounds are a rich source of healthful antioxidant substances.

Chemical modules that mimic predator-prey and other behaviors devised Posted: 09 Jan 2013 08:00 AM PST Scientists are reporting development of chemical modules that can reproduce, on an "unprecedented" molecular level, changes and interactions that occur in natural populations of plants and animals, including those of hunting and being hunted for food, conducting mutually beneficial relationships and competing for resources. These new "predator-prey biochemical oscillators" could become building blocks for molecular machines and computers.

News from the world of quantum physics: A non-causal quantum eraser Posted: 09 Jan 2013 07:59 AM PST Whether a quantum object behaves like a wave or like a particle depends (according to the Copenhagen interpretation) on the choice of measurement apparatus used for observing the system, and therefore on the type of measurement performed.

The Teotihuacans exhumed their dead and dignified them with make-up Posted: 09 Jan 2013 07:58 AM PST Researchers have analyzed for the first time remains of cosmetics in the graves of prehispanic civilizations on the American continent. In the case of the Teotihuacans, these cosmetics were used as part of the after-death ritual to honor their city's most important people.

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