Polarization, diversity, and democratic robustness

Polarization is dangerous for democracy. Though the U.S. Constitution was designed to harness rivalry with a diverse, redundant, and modular set of institutions, if that rivalry curdles into the belief that your competitors ...

Sibling rivalries lead to friendly finches

A new study has revealed that growing up with lots of siblings – and fighting over food – makes zebra finches more sociable in later life. In contrast, finches with fewer siblings become pickier about who they hang out ...

SAP to buy Ariba for $4.5B, extending cloud push

(AP) -- Business software maker SAP AG on Tuesday said it will buy Ariba Inc., which makes Web-based software that connects suppliers and buyers online, for about $4.51 billion.

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