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+ - Mystery of the Narwhal's tusk solved? It's a status symbol->

Submitted by sciencehabit
sciencehabit (1205606) writes "Although the narwhal is well-known throughout popular culture, the purpose of its iconic tusk is not. The appendage—which is actually a single tooth that protrudes from the whale’s upper left jaw—can grow up to 2 to 3 meters in length and is found almost exclusively in males. Many explanations have been offered up, including its potential use in defense, foraging, male competition, and breaking of sea ice; however, support for many of the proposed functions has been limited to isolated observations. Now, new findings provide evidence that the tusk may serve as a visible feature that females use to identify the most fertile males when choosing a mate, much like a stag’s antlers or a peacock’s feathers, that are used to attract females. Tusk length was significantly related to the testes mass—an indicator of fertility—suggesting that males with longer tusks are likely also the most fertile and best mates."
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+ - Is this even a threat to Google Cars?->

Submitted by sudsero
sudsero (3841925) writes "Hands free driving is coming to Detroit. Chief Executive Officer, Mary Barra, through General Motors introduced a new hands free Cadillac model within two years at the Intelligent Transport System World Congress in Detroit.

It can travel the highway without steering assistance but not yet confirmed that it can handle the Detroit surface roads. Dubbed “Super Cruise” the 2017 Cadillac model will take control of steering, braking up to 70 miles per hour or heavy traffic. A proper name has not yet been confirmed for the upcoming model."

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+ - Psychologist's study finds the old adage "Happy Wife, Happy Life" is true->

Submitted by tomhath
tomhath (637240) writes ""When men felt willing to express their anger or frustration, women took that as a sign that their partners were investing in the relationship, the study found. For most women studied, this translated into a sense of security or happiness for the women.

Men, by contrast, commonly expressed more fulfillment after their female partners expressed to them that they were fulfilled and satisfied in their relationships.

While the study, published in the Journal of Family Psychology, ultimately found that happiness stems from a willingness to try and understand whatever emotion one’s partner is feeling, men tend to disengage when negatively aroused, while women tend to engage and want to discuss the problem.""

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Comment: selecting the electric car buyer (Score 1) 42

by tomhath (#47958655) Attached to: Wanxiang May Give 2012's Fisker Karma a Relaunch
Electric cars would work if you have a short commute and a garage where you can charge overnight/every night. But they won't work if the commute is too long or you don't have a convenient place to charge or you commute using public transportation. Plus you will need a second car or use rentals for pretty much anything besides the daily commute. That really limits the market.

Comment: Re:As a matter of fact... (Score 5, Insightful) 387

by tomhath (#47955707) Attached to: Why You Can't Manufacture Like Apple
But they didn't outright buy your company. They got an exclusive license on the product by promising to sell enough copies to make you rich. Then they released their own knockoff of the product (on which they didn't pay you any royalties) and you went out of business. Embrace - extend - extinguish.

Comment: Re:Fair and darker skin (Score 1) 85

by tomhath (#47945841) Attached to: Europeans Came From Three Ancestry Groupings

It makes sense, IMO - agriculture meant that this particular group became dominant and thus contributed disproportionately more to the gene pool in a relatively short time.

That's one possibility. Another is that raiding parties captured and raped their women. That worked pretty well for Genghis Khan.

Comment: Re:Not a problem... (Score 1) 323

by tomhath (#47939637) Attached to: New Study Projects World Population of 11B by 2100

Why populate those areas? If you don't want population control you will need to warehouse people as efficiently as possible.

Manufacturing can be done in highly concentrated locations (China is showing us how). Agriculture doesn't require very many people anymore, same with mining and forestry. Cities are the only way to deal with hoards of people.

Plus you're still just kicking the can down the road a few decades. Eleven billion? What happens when that doubles in another few decades, then doubles again? It can't go on forever.

You scratch my tape, and I'll scratch yours.

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