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Nike Shox Clearance

Nike Shox Clearance

had been raised by humans, the wolves beat the dogs hands down. These changes don't happen instantly. When a wild pigeon gets captured, its brain doesn't shrink. The transition is gradual, across generations, in the animal's DNA. Presumably, domestic beasts are selected for certain qualities tameness, friendliness, cooperativeness. Nike Shox Nz Shoes Reviews

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Nike Shox Clearance

That's nice to hear, but going back to the sheep video: What if the price of getting nicer is that.

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Nike Shox Clearance

Nike Shox Clearance

ed for gentleness, for human uses, apparently you get stupider. Well, "stupider" may not be fair. Brain size doesn't always correlate with intelligence. On some tests, laboratory rats outperformed wild rats, and domestic guinea pigs did better than wild cavies. But most of the time, writes evolutionary biologist and science blogger Christie Wilcox, when the test is about puzzle solving, wild animals win:Dogs, for example, appear to be a few crayons short of the box when compared to wolves. A study in 1985 found that wolves vastly outperformed malamutes in getting a food dish from a series of complex puzzle boxes. Nike Shox Mens Clearance

Nike Shox Clearance

Which may (or may not scientists are still arguing about this), lead to a slightly duller animal, like the ones bleating in our video.

And while one study had found that dogs are better able to pick up human social cues than wolves, they were criticized for using wild wolves that had little interaction with people.

Indeed, when another set of researchers did the same kind of study using wolves that Nike Shox Womens Size 11

Nike Shox Clearance

Nike Shox Clearance

NPR reported a couple of years ago Nike Shox Clearance that human brains have gotten smaller over the past 10,000 years. About 10 percent smaller. Our skeletons are also a little lighter, our foreheads a little flatter. Duke University's Brian Hare told my colleague Jacki Lyden that these changes and smaller brains are a "signature of selection against aggression," meaning we may, on the whole, be less brutish than we used to be. The most violent among us are more likely to be culled (bye bye, Saddam, Osama, Idi, Adolph; hello, Alan Alda). We have begun, Hare thinks, to domesticate ourselves.

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