This chapter describes the role played by behavioural adjustments to foraging behaviour in accommodating rapid environmental change. It looks into the adjustments of foraging behaviour to predation danger as a result of changes in the type and array of food available. It investigates the effects of predation risk on prey behaviour which can profoundly affect population growth. It enumerates major influences recognized in behavioural ecology as crucial with regard to individual foraging decisions, and considers the relevance of these ideas for how rapid environmental change might be accommodated. It also concludes the vital role of foraging behaviour, through flexibility, can moderate greatly the effects of changes in the amount and type of prey on offer.