Love, Cheating and Testosterone-Fueled Stock Trades

Traders at New York Stock Exchange Historic American Buildings Survey

Also in today's links, the other uses of bat wings, and the other reason you should be out in the fresh air instead of online.

• In case the financial crisis hadn't done enough to indicate that Wall Streeters are not necessarily soberly weighing all facts to produce the best results for all, a new paper offers another explanation for irrational missteps: the most successful traders might be working in a state of testosterone-driven euphoria.
• Ants who illegitimately produce offspring get branded with a scarlet P, for parthenogenesis, via pheromones that betray their behavior to other ants, who then attack the one who broke society's rules.
• So often science focuses on "what things are for." A recent study of bat behavior focuses on "what else" wings are for -- besides flying.
• There is a wonderful sci-fi movie in here somewhere: a columnist reads a new Nature paper on love, and ponders the possibility of a love potion, or a love vaccine.
• A researcher says he's putting a number on the CO₂ produced by such acts as running a Google search. Other people think he might be making these statements because he's got something to sell. What do you think -- will you be limiting your searches and other Internet use?