Mosquitoes are more attracted to people already infected with malaria

It looks like malaria somehow makes its host more delicious to mosquitoes, via tdj

Mosquitoes are more attracted to people already infected with malaria. And this appears to be because the malarial parasite orchestrates its own onward transmission from within the human body, a new study suggests.
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“What’s surprising is that this is not to the advantage of anybody but the parasite,”...“This tremendously important interaction for the person and the mosquito – both can die as a result – is being engineered by the parasite.”

This "engineering" is natural selection: parasites who implement the mechanism multiply more.

But it seems really unlikely that you could orchestrate both sides of the deal via random mutations... so one of them must have been accidentally tuned to start with (before this mechanism evolved): either (1) the different human smell became a side-effect of the parasite while the effect on the mosquito's attraction to that smell has always been the same; or (2) the other way around (effect on human smell always been the same, effect on mosquito behavior evolved). The first seems more likely, especially since the evidence says nothing about the parasite influencing mosquito behavior.

I would bet that, if for some reason mosquitos stop being attracted to that smell, there is nothing the parasite can do about it. (the alternative would be that the parasite could quickly adapt to make infected mosquitos attracted to that smell again, but my claim here is there would have to be a big fluke for them to hit upon such a mechanism (since mutation is random), unless a similar thing were already encoded in the parasites' genes)

Greens and Libertarians: their psychoepistemologies

Dan Sullivan - Greens and Libertarians: The yin and yang of our political future

... basic differences between the approaches of the two parties and their members. Libertarians tend to be logical and analytical. They are confident that their principles will create an ideal society, even though they have no consensus of what that society would be like. Greens, on the other hand, tend to be more intuitive and imaginative. They have clear images of what kind of society they want, but are fuzzy about the principles on which that society would be based.

Ironically, Libertarians tend to be more utopian and uncompromising about their political positions, and are often unable to focus on politically winnable proposals to make the system more consistent with their overall goals. Greens on the other hand, embrace immediate proposals with ease, but are often unable to show how those proposals fit in to their ultimate goals.
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It is said that Libertarians have a conservative philosophy and Greens have a liberal philosophy. In reality, conservatism and liberalism are mere proclivities, and do not deserve to have the name "philosophy" attached to them. People who have more power than others are inclined to conserve it, and people who have less are inclined to liberate it. In Russia, as in feudal England, conservatives wanted more government control, as government was at the root of their power. Liberals wanted more private discretion.

In the United States today, where power has been vested in private institutions, conservatives want less government and liberals want more. What passes for conservative and liberal "philosophies" is merely a set of rationalizations that power-mongers hide behind.

Libertarians tend focus on means, Greens tend to focus on ends.
They are committed to different sets of beliefs. They are not incompatible, and they could form powerful political alliances, if only they could get over their differences. And if they got rid of radicals on both sides, I'd be quite happy to join them.

I find it very interesting that political ideology reflects a difference in psychoepistemology. I remember seeing an article about conservatives having fearful personalities:

Is there a conservative gene?

The psychological variables that the study claims might contribute to the adoption of a conservative ideology include anxiety regarding death, intolerance towards ambiguity, resistance to change, avoidance of uncertainty, need for order, structure and closure, fear of loss or threat, aggression and lower than normal levels of self esteem.

Links:
Correlation between MBTI and political affiliation
Comments on "Relations among Political Attitudes, Personality, and Psychopathology Assessed with New Measures of Libertarianism and Conservatism"