Why has same-sex sexual behavior persisted during evolution?

Same-sex sexual behavior may seem to present a Darwinian paradox. It provides no obvious reproductive or survival benefit, and yet same-sex sexual behavior is fairly common—around 2-10% of individuals in diverse human societies—and ...

How flood protection can paradoxically put people at risk

Governments who build defences against rising seas can actually increase their citizens' risk of being flooded—if they fail to take account of the 'safe development paradox," according to a flood defence expert.

The rich, the poor and social cooperation

The thicker the wallet, the more cooperative you are? An economist from the Max-Planck-Institute for Tax Law and Public Finance proves via laboratory experiments that rich people are believed to be more cooperative than poor ...

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