The natural habitat of a spider usually consists of its food sources and its natural environment. The climate and habitat content of a spider can vary greatly, depending on the species and geographical location of the spider. Spiders are believed to inhabit almost every ecosystem on the planet except arctic, high-altitude, and underwater ecosystems. Numerous spider species around the world have been forced to evolve and adapt to very different habitats, leading to very large variations in behavior between species and continent to continent. Although spider habitats can vary widely, they generally all provide a constant source of food and tolerable climatic variations.
Some species, for example, prefer a spider habitat that allows the construction of a funnel-shaped net, rather than the large net-shaped net that many other species build. Spiders such as the hobo spider or the domestic spider generally prefer to build funnel nets and can therefore look for habitats where there are dark cracks. Stone piles, stone or brick walls, and areas of dense ground cover are considered places where funnel chandeliers can normally be found.
Some types of spiders, such as the crab spider, do not build nets, but actively hunt their prey. These species generally need an outdoor spider habitat and are heavily populated with insects. Gardens, flower beds and open meadows can be privileged habitats for active spider hunting.
Spiders such as the orb spider are known to build raised nets in the form of a net. These spiders usually feed on flying insects and need a habitat that provides them with abundance. They can make their homes in trees and bushes, under the eaves of houses, or even inside these homes at times.
Spiders generally adapt to almost any habitat. When a small population of spiders is trapped in an inhospitable environment, as sometimes happens, they are considered to be very susceptible to developing new traits that may eventually help them thrive in this habitat. Spiders generally cannot live in extremely cold climates and there are no known underwater species. A good spider habitat should offer a constant supply of spider prey and a climate that does not reach extremes of cold. Most spiders should be able to adapt to any habitat that includes these things.