Humans as well as the wildlife are completely dependent upon environment for their survival. Humans are completely dependent on the environment. Like humans, the wildlife is also dependent on the environment for its survival and also gets affected by the environment. The relationship between humans and animals can be understood by the food-chain and food-web. The wildlife is affected by several reasons such as population, deforestation, urbanisation, high number of industries, chemical effluents, unplanned land-use policies, and reckless use of natural resources, etc.
The Directive Principles of State Policy provide that protection and improvement of environment, safeguarding forest and wildlife have been duly enjoined upon the Government. Those principles have found statutory expression in various enactments i.e., the Wildlife (Protection) Act, 1972 and the Environment Protection Act, 1986 etc. which have been enforced by the court in various decisions. The inaction of the State to constitutional and statutory duties cannot be permitted. The Court has to issue appropriate directions to fulfil the mandate. Article 51-A of the Constitution of India provides fundamental duty to protect and preserve environment, wildlife, etc.