The research team in Wolong discovered that the giant panda is not territorial. It has a clearly defined home range in which it spends all its life and which contains all the resources it needs to survive: food, mates, nesting sites and shelter, but it does not defend this area from other animals of the same species. Individuals neither patrol nor scent-mark the borders of their home ranges, nor do they engage in any direct territorial confrontations. Females do not share any of their home ranges with other females, but the home range of each male overlaps considerably with those of male neighbours and with those of three to four females. The overlap between male ranges can be so great that neighbouring ranges may overlap with those of the same females (see Map).