Which of the following is not a behavioural adaptation used by social animals?

The option that is not a behavioural adaptation used by social animals is "Season". This is because season is not a behavioural adaptation but rather a natural phenomenon that affects the behavior of animals. Cryptic, Mimicry, and Flash are behavioural adaptations used by social animals to protect themselves from predators or attract mates. Cryptic adaptation involves blending with the environment to avoid detection, while mimicry involves resembling a harmful or dangerous organism to deter predators. Flash adaptation involves sudden displays of bright colors or movements to startle or distract predators.