The mirror test focuses on visual cues; however, there is no reason to think that other animals only use vision to make some assessments of self. The results of studies of self-recognition are a mixed ...

How well do you know yourself? Do you think about why you do the things you do? Self-reflection is one way to learn more about yourself and what matters to you. It's all about stepping back and ...

Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more ...