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The original was posted on /r/science by /u/mvea on 2025-07-11 12:56:17+00:00.

Original Title: Fish may be smarter than we think. Lab-based studies of learning and memory in fish may underestimate their true cognitive abilities in the wild. A new tool allows scientists to study fish cognition in the wild. The study of fish cognition has implications for the care of captive fish.