Cleaners, Predators and Freeloaders

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Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

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Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.

Cleaners, Predators and Freeloaders

Fish have evolved extraordinary ways of seeing and hearing, both to find a meal and avoid being one. They've also perfected a repertoire for camouflaging themselves, even in open water. Most remarkably, some have learned to make themselves indispensable to fish that would otherwise eat them.