Learn how cleaner wrasse used a mirror and even dropped food to test their reflections, a behavior linked mostly to mammals.

Our capacity for self-knowledge distinguishes humans from other animals. We are the only creatures truly capable of knowing themselves. While self-knowledge can be generated in other ways (such as ...

Opinions expressed by Entrepreneur contributors are their own. As an entrepreneur, two of the most important personality traits you must possess are self-reflection and self-awareness. Self-reflection ...