A small coral reef fish can recognize itself in a mirror. This discovery challenges long-held ideas about animal intelligence ...
A shrimp scrap drifted down the face of a mirror, and a small reef fish tracked it like it was watching a slow-motion ...
A recent study reveals how tiny reef fish demonstrate advanced awareness by using mirrors to inspect marks placed on their bodies.
Learn how cleaner wrasse used a mirror and even dropped food to test their reflections, a behavior linked mostly to mammals.
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