Scientists have debated the definition of life for decades, but they still lack a consensus on the answer. Experts believe that "edge cases" make life difficult to define and blur boundaries across ...

What is the definition of meaning? When we talk about meaning in psychology, we are generally referring to a significant or valuable explanation for why something happened or why it matters. This ...

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 ...

Elodie Chevallier does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Dictionary.com has crowned a set of numbers as its 2025 word of the year. It says it reserves that distinction for a word that reflects "social trends and global events that defined that year" and ...

When Marsha Blackburn asked Ketanji Brown Jackson to define "woman," she said "I'm not a biologist." Blackburn was displeased, but experts say Jackson's answer was scientifically sound. There is no ...