DO DOMINANT MALES REALLY GET MORE… MONKEY BUSINESS?

This question gets back to the premise of QUIRK: Yes, badass males win control over more uteruses. But it’s a small advantage, with a very high cost. So, it’s one strategy for winning Reproduction Roulette, but it’s not the only strategy.

This comes from a “meta analysis” of research on dominant males in a variety of monkey and ape species. By looking a numerous papers, researchers can sometimes see a trend that doesn’t show up in a single research project or experiment.

They were hunting for the payoff that creates dominance hierarchies in the first place. Presumably, if you’re going to fight your way to the top, there’s a prize up there. Presumably that prize is the right to mate with more females, and to eat the best food.

Surprisingly, the individual investigations have been unclear: Some say yes; others say… uh…

That’s surprising because various studies have found that winning the rat race is expensive for primates, in terms of stress. Males who fight for the throne suffer not only physical wounds, but chemical ones as well. Females, based on baboon research, actually raise more offspring if they have good friends than if they’re dominant.

But there has to be a payoff for all that stress and struggle.

The trend that emerged from 94 studies: Males do, in fact, get better access to uteruses in exchange for their struggles. But if it takes 94 studies to make this clear, then the advantage is small.

Which means the advantage to not being dominant is bigger than you’d think: Somewhat fewer kids; but no biting, no fighting, no stress.

This reminds me of drifter males in orangutans: They skip the final transition into fat-faced masculinity, and all the battles that ensue. They’re successful breeders because they pass for females — and then mate with them. WINNING!

There’s more than one way to skin a cat. There’s more than one route to the uterus. There’s a reason that your personal quirks are still circulating in the human gene pool.

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YOUR EYES HAVE A MIND OF THEIR OWN

A cool new optical illusion has revealed an oddity of the eye: The pupil doesn’t automatically clamp down when it detects bright light. It clamps down when the brain tells it to — and the brain can be fooled.

Background: The eye’s pupil regulates how much light strikes the retina at the back of the eye. Too much light burns out the rods and cones. Too little leaves them unstimulated, and leaves you blind. Scientists believed the pupil constricted automatically, reflexively, in response to a photon blizzard, to protect the retina.

This experiment says there’s more to it.

The researchers monitored people’s pupils as they looked at an optical illusion. The illusion created the appearance of a bright light where there was none. The illusion was caused by the contrast between dark and light areas of a pattern.

And the brain was fooled. And the reflex was outed. The pupil constricts in response to contrast, or relative brightness.

Hahahah! Stupid pupil! Don’t believe everything the brain tells you! You might have been better off as an autonomous organ, instead of handing over operations to the brain!

So that’s it. It’s a bit arcane, but illusions are always fun. See?

Oh, my! Looking to credit this image, I ended up at site of its creator, one Akiyoshi Kitaoka. Run, don’t walk, to his web page, where your brain will be twisted, tortured, and toyed with in an embarrassing manner!

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ARE YOU CONFRONTATIONAL? COMPETITIVE? CANCEROUS?

It’s interesting how language intuitively homes in on our physical reality. Hot headed, hot blooded, hot tempered, hot under the collar, a heated discussion, getting steamed — turns out these things correlate with a rise in the body’s inflammatory activity. And inflammation is a cold killer.

Researchers asked volunteers to record three types of social interactions for a week: positive; negative; competitive. They also subjected them to stressful conditions in the laboratory.

And they measured the inflammatory compounds circulating in these people.

Uh-oh. People with the most negative and competitive interactions were also producing the highest levels of inflammatory molecules.

Inflammation is the new bogeyman. It’s been linked with everything from heart disease to cancer. It’s best to avoid it. It’s best to sit like the Buddha under a tree and breathe deeply. It’s best to keep your cool.

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NEANDERTHALS: MAKING ART SINCE BEFORE THEY EVEN DISCOVERED CANDY CORN

OK, I promised not to dwell on the Neanderthals after being apprised of the public disinterest in the hunky Europeans whose DNA twirls inside my cells. Alas, again I am compelled: Eurohominids were playing with paint waaaaay before the sapiens swaggered forth from Africa.

Yup, someone has found paint spatter, powdered ochre in liquid form, spilled on the floor of a Dutch cave. Its age? Perhaps three times the number of eons that sapiens has been trashing Europe: 200,000 to 250,000 years. That gets into the question of the actual identity of the hominid who spilled the red paint. It’s as old any other ochre discovery. Anywhere. By any hominid, hunky or otherwise.

So perhaps it’s safe now for archeologists to forget about only Homo sapiens being all smarty and arty, and just assume any hominid with half a brain was playing around with any material that made pretty colors. Maybe that rules out Lucy, pea-brain that she was? Who knows?

I, personally, am going to assume that curiosity is the driving force behind early uses of color; and that any animal blessed with curiosity and a stone that turns bright red or white or black when you scratch it on something will commence doodling.

Which reminds me of the “Five Best Toys of All Time” essay that traveled the internets a few weeks ago.

On the list was: Dirt, and its mud derivative. No child can resist mud. Raise your hand if you’ve never played with mud, never used a muddy finger to make a mark on the ground, your leg, your face. I submit that finger painting is as universally “hominid” as the liking for candy corn.

What? Where’s the proof that ancient hominids liked candy corn? Hey, I’m part Neanderthal, and I love the stuff.

For more rigorous reporting on this, and any anthropology, please do yourself a giant favor and bookmark John Hawks blog at: http://www.johnhawks.net The specific entry on this find is here.

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SPANKING: APPROVED ONLY FOR CONSENTING ADULTS

Spanking. Isn’t it a little weird, when you think about it? I don’t mean the consenting-adult kind. I mean the kind that creepily mimics the consenting-adult kind, but happens between an adult and a child, who vigorously doesn’t consent.

I started looking for research after the big-ass headline this week: SPANKING MAY MAKE KIDS STUPID. AND MEAN.

Here’s one of the first things I found: a page dedicated to dedicated child-ass-whackers. It doesn’t merely advocate spanking children. It seems particularly excited about the idea of spanking children’s bare butts.

It also implies that the worldwide renouncement of corporal punishment is a commie-anti-Jesus-loony-left-anti-family plot.

It also offers access to free paddles, and a collection of “spanking art.” Am I being a Pilgrim here, or is this starting to sound a little… um… I can’t quite say it.

But have a look at “Grandfather Prepares Peter for Corporal Punishment,” and let me know what you make of Grandfather’s intent. Is a cigar always… never mind. What the HELL is going on with Grandfather’s trousers… never mind. I’m sure the TOTALLY TERRIFYING people at CorPun (World Corporal Punishment Research) mean no har… no, actually I’m not so sure.

For what it’s worth, neither spanking nor sexual abuse has shown to be advantageous to a child’s psychological or social development. Au contraire. Researchers have already found that childhood spanking or slapping increases the odds of a person suffering anxiety disorders, alcohol problems, aggression, sexual dysfunction, and “externalizing disorders.”

(Those include ADHD, Oppositional-Defiant Disorder, Conduct Disorder, Bipolar Disorder.)

Science is pretty clear that unpredictable and unavoidable violence is bad for any animal’s brain. It’s stressful, which causes a unique and corrosive cascade of biological events in the brain. And it’s educational, seeming to wire a young brain to survive in an environment that is solitary, poor, nasty, brutish and short, so to speak.

Not the brain I’d want for my kid.

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