Territorial behaviour is a common trait among many animal species, where an individual tries to protect its area or resources from others of the same species. Some other synonyms for territorial behaviour include defensive behaviour, protective behaviour, aggressive behaviour and possessive behaviour. These behaviours are generally exhibited when a creature feels threatened or challenged by another individual, and it may go to great lengths to ward off any perceived threat to its territory. This behaviour can be adaptive, helping to ensure the survival of the individual and its offspring within its particular habitat. By protecting its home, a creature can also prevent intruders from accessing precious resources such as food, shelter, and mates.