The Frontal Cortex

I am a little confused about how increased diversity results in greater physical and mental capacity? Is it because each gamete donor of the hybrid provides different capacities which work together to produce overall improvement in skills? And why would the attributes have to be recessive? I am sorry if this is a ridiculous question but I actually want to know the answer?

Posted by: Dhea | July 31, 2008 10:46 AM

What's a good way to determine that someone you're going to marry has significantly different genes?

Posted by: Ben_Wraith | July 31, 2008 2:57 PM

Having dealt with donkeys, horses, AND mules for the first part of my life, in Colorado, I would tell you without hesitation that this comes as absolutely no surprise to anyone who has dealt with these creatures. This is one of those situations where research absolutely echoes everyday common experience, for once. Mules are smart.

And cunning. Damn cunning.

If a mule likes you, you will never have a better pack animal, and they will deliberately help you out, and you can trust them absolutely to find footing anywhere. (I honestly wouldn't be that surprised to see a mule make it up a ladder.) If a mule takes against you, you are doomed. Give up now. Sell the thing, it's the only way both of you will survive.

And mules can kick you no matter where the heck you're standing, too. They can kick sideways. They can kick their hind legs up past their chin. Seems like they can kick you if you're on their back. Narrower bodies than horses, longer bodies than donkeys, damn flexible spines.

And they can open slide latches with their lips.

Have I ever mentioned that I *love* mules?

Posted by: Luna_the_cat | July 31, 2008 3:42 PM

To add to Luna_the_Cat: scientists have speculated that the MHC complex (a string of genetic data responsible for some immune responses) is responsible. These complexes produce molecules that apparently reflect the genetic diversity of the possessor and can be detected through smell. Claus Wedekind did a study with female college students and t-shirt smelling: women smelled tshirts that had been worn by men for 2 nights and had to determine which shirt was "more attractive". The MHCs of both sexes were determined and in most cases, women found men with different MHCs from themselves more attractive. Kinda neat & makes you consider sniffing your date (though it would probably still be considered incredibly weird).

Posted by: BCham | July 31, 2008 4:29 PM

could we have missed the 'let some air out of the (truck)tires' obvious? horses and donkeys are way dumber so the
offspring(mule) has a way better chance of being smarter.

Posted by: jfrancis | August 1, 2008 9:35 PM

John
I've often speculated whether religions that stone their women and men to death for sexual and other misconducts weren't acting to 'domesticate' the population.

Posted by: David Baird | August 10, 2008 2:17 PM

Here the physical and mental merge. A donkey may be canny, but it is fairly small. A horse is large and powerful, but relatively easy to dominate--their size makes only a marginal difference in herd dynamics (i.e. a pony may be dominant over a draft horse). But a mule seems smarter because it is large and powerful with a better understanding of just what his or her large powerful body can do.

Part of intelligence is the confidence to make a risky or nonstandard choice. For a donkey or horse, choosing the right bucket consistently might have been difficult because they were following a habitual pattern (say, right bucket first) or a standard alternating pattern. But the mule was more able to risk going hungry by acting on a hunch. What makes mules smarter is their ability to break out of patterned behavior. I’m sure you all know the old mule-handler’s saying: “A good mule aint the same good mule he was yesterday.”

Posted by: McFawn | August 14, 2008 3:29 PM