An accessible, research-driven exploration of fish intelligence and behavior that challenges the idea of fish as simple reflex-driven animals. Drawing on studies and field encounters, the book surveys cognition across thousands of species and reveals unexpected complexity beneath the surface.

Examples span elaborate courtship and lifelong social bonds to cooperative hunting, tool use, deception, and spatial navigation from tide pools to deep waters. The narrative balances scientific evidence with vivid observations.

Ideal for readers curious about animal minds and marine life, the book reframes our understanding of fishes and highlights implications for how we relate to and protect aquatic ecosystems.

Key themes

• Fish cognition and social behavior
• Navigation, memory, and tool use
• Cooperation, deception, and mating rituals
• Conservation and human–fish relationships

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