Tigers are mostly solitary, apart from associations between mother and offspring. Individual tigers have a large territory, and the size is determined mostly by the availability of prey. Although individuals do not patrol their territories, they visit them over a period of days or weeks and mark their domain with urine and feces.
Across their range, tigers face unrelenting pressures from poaching, retaliatory killings and habitat loss. They are forced to compete for space with dense and often growing human populations.