Yes — at least some of them. In 2006, an Asian elephant named Happy touched her trunk to a mark painted on her forehead, which she could only see in a mirror. This “brand test” is considered a sign of self-recognition.
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The brand test
The experiment, published in the journal PNAS, placed a giant mirror in the Asian elephant enclosure at the Bronx Zoo. The animals first explored the object, looked behind it, then used the mirror to inspect the inside of their own mouths — and Happy took the decisive step by touching the mark on his head.
Very few species pass this test: great apes, the bottlenose dolphin, the black-billed magpie and the Asian elephant. This short list brings together very different brains — a sign that this ability has evolved several times independently.
What it says — and doesn't say
Not all the elephants tested succeeded, and a failure does not prove the absence of self-awareness: the mirror supposes relying on sight, while the elephant lives first in a world of smells and sounds. The test sets a lower limit, not a definitive ranking.
