If you're curious about which government grants are supported by taxpayer dollars, try Sen. Rand Paul's (R–Ky.) new Real or Fake quiz (1) and test your skills. The quiz mixes examples of real federal ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 2 min The Davidson-based industrial ...

Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...

Writer and philosopher Ayn Rand was often accused of inventing cartoonish villains. Rogues like Ellsworth Toohey in The Fountainhead would scheme to seize the global economy's commanding heights in ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amanda Jackson has expertise in personal ...

Excel's randomization functions generate values, shuffle datasets, and simulate timelines using simple formulas.

Executive function describes a set of cognitive processes and mental skills that help an individual plan, monitor, and successfully execute their goals. The “executive functions,” as they’re known, ...

Mitochondria are dynamic organelles. They continually fuse and divide, are actively recruited to specific cellular locations and have dynamic structures. Mitochondrial fusion requires three large ...

• The adrenal glands sit above the kidneys and produce the hormones cortisol, aldosterone, adrenaline, and noradrenaline that regulate metabolism, blood pressure, blood sugar, and stress response. • ...