Habitat is defined as "the natural environment in which a species lives". A habitat includes all four necessities for survival – food, water, shelter and breeding area – as well as climate, predators and other animals, plants, landforms and other natural characteristics.
Most plant and animal species have special adaptations which make them suited to their natural environment. Therefore, they may not be able to adjust to changes within their habitat. Many adapt over time to cope but changes brought about by humans are often too quick to enable this adjustment to take place and may result in extinction of the species affected.