"It can keep better land that may contain more prey than other areas. If it is a breeding male it also may protect it's offspring from being killed, preserving it's genes. While definding it's terratory, it may become injured or even killed, though most animals are willing to take the risk, unless they are sure they will lose any fights that may result."@en . "What would be the costs and benefits for an animal that is defending its territory"@en . "It can keep better land that may contain more prey than other areas. If it is a breeding male it also may protect it's offspring from being killed, preserving it's genes. While definding it's terratory, it may become injured or even killed, though most animals are willing to take the risk, unless they are sure they will lose any fights that may result."@en . . .