Fish talk Fish talk Fish are specifically sensory oriented animals. Different groups of fish communicate in different ways with different sorts of languages. These languages are called pheromones.
Pheromones are chemicals that carry messages that produce behavioral responses in other fish.
Different species of fish uses different chemicals, which usually makes it hard for different species to communicate with each other. Pheromones can communicate a number of messages ranging from whether or not danger is looming, food is present, or mating is to occur. The reactions to pheromones are automatic and observable under certain circumstances. Social pheromones exist as well, cueing fish in on whether or not they are too crowded together or lonely etc. Fish can also change their color as an indicator of their mood.