In the present-day world, human-induced ecological and landscape changes are occurring at a pace that many species of wild animals and plants are unable to cope with. It is becoming clear that active management interventions are required to conserve wildlife. So one of the goals of the behavioural studies should be to contribute to wildlife conservation. In this chapter, examples of vertebrates are taken so that varying degrees of trends, commensalism and conservation are recorded, and accordingly, mitigation measures on the ground are executed. At the macro level, it should be recognized that human lives and the environment are linked with animals, and there are real-world consequences of losing wildlife.