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Correcting Science and PNAS, evolution of more-deadly suicide bombers, blind composers, transcending tradeoffs, light-responsive rhizobia

Absence of Detectable Arsenate in DNA from Arsenate-Grown GFAJ-1 Cells
GFAJ-1 Is an Arsenate-Resistant, Phosphate-Dependent Organism
Surprise! They don't use arsenic instead of phosphorus after all.

Unobserved time effects confound the identification of climate change impacts "PNAS reported statistical evidence of a weather-driven causal effect of crop yields on human migration from Mexico to the United States. We show that this conclusion is based on a different statistical model than the one stated in the paper."

Evolution of music by public choice ...as in natural selection, variation is random but selection isn't.

Explosive Backpacks in Old Termite Workers ...they weren't going to reproduce anyway, but I wonder how long these "suicide vests" took to evolve.

Compensatory mechanisms for ameliorating the fundamental trade-off between predator avoidance and foraging "enhanced nutritional physiology allows caterpillars to compensate when threatened. However, we report physiological costs of predation risk, including altered body composition (decreased glycogen) and reductions in assimilation efficiency later in development." Similarly, reducing investments in research may not affect economic development much between now and the next election.

Light regulates attachment, exopolysaccharide production, and nodulation in Rhizobium leguminosarum through a LOV-histidine
"illumination of bacterial cultures before inoculation of pea roots increases the number of nodules per plant and the number of intranodular bacteroids."

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