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Demonstrating Flight & Critical Distances as Survival Strategies in Living Crayfish

The above are examples of flight, attack, and critical behavior found in most animals, including crayfish. Flight reaction is the distance between an animal and a threat, at which the animal exhibits avoidance behavior by retreating. Attack reactions involve the realization that escape is futile, so defense becomes imperative. Critical reactions are the last effort defense behaviors of cornered animals (Hediger, 1964).