The mirror test for animal self-awareness reflects the limits of human cognition
When you look in the mirror, you see yourself. That puts you in the company of animals like dolphins, elephants, chimpanzees, and magpies, all of whom have shown the ability to recognize their own reflections. The mirror test is often used as a way of measuring whether animals possess self-awareness. But now that a species of fish—the cleaner wasse—has also spotted its reflection, some scientists are wondering if the mirror test says more about the way humans think than...
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