Asking a biologist to define 'life' is a bit like looking-up the word 'definition' in a dictionary — it's as if you're questioning their very existence. Biologists like myself don't agree on what life ...

Wonder why kids, teens say "67" and jiggle their hands?What it means, why it's the Dictionary.com 2025 Word of the Year and ...

People often feel that they can intuitively recognize whether something is alive, but nature is filled with entities that flout easy categorization as life or non-life — and the challenge may ...

One of my earliest posts here concerned the definition of play, which I developed further in an article on “Definitions of Play” for Scholarpedia (Gray, 2013) and in my book Free to Learn. I first ...

This year, 17 state legislatures sought to narrowly define “sex” or “gender” in state law as based solely on biological characteristics. In Utah, one became law. Although they’re sometimes used ...

Happiness is defined differently depending on who you ask. Some people define happiness as a positive emotional experience. Others define happiness as having two parts called hedonia (pleasure) and ...

Defined benefit plans are often referred to as pensions. For employees who meet certain criteria in the workplace, these accounts typically pay out predetermined benefits in retirement. Here's a look ...