A form of mental biological capacity, or congenital, or due to frustration caused by the reaction, or due to frustration and enhanced performance for the
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No. 2
Public destruction, fight, plus the pain in people, sexual violence or forcible seizure
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No. 3
Covert hostility, paranoia possession or greedy
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No. 4
Aggressive behavior of animals is the same kind of attacks that took place between individuals or fighting. In the animal world, the same species compete for food between individuals is often the spouse, to seize the nest area, each area of attack or fighting occurs. Nesting area is in the normal life activities of animals used in the place, such as feeding, activity, rest, build nests, regional child-care and other activities, the larger the scope of the region. The vast majority of birds return from the far south after breeding, to actively seek the opposite sex to breed. The male flew to the nest area, they immediately take a safe, comfortable, food is abundant areas to "cede territory and rule the roost," and never promised other birds, especially the males of the same species from re-entering this site. So he stood on Shujian loud singing, and soaring into the sky, flying in their own sites over Douzhuoquanzai while, then fell on the field. This is a warning of other birds, "This is my site." This also attract the female-of-flight to show off the special meaning. During the breeding period of birds that occupy the site of the phenomenon known as the "occupied areas", which occupied the site known as the "field." This area is in the nest as the area has a range of special protection of the animals and prevent the region, will never allow other individuals (mainly homosexual individuals) invasion, often use intimidation or fighting to defend the district. Some of the offensive attacks the body, and some non-physical (such as posturing, intimidation, expulsion and other actions). Bring animals, it would be natural to link them and the cruel word. Do you know if the same species of mammals live together, even in battle, in addition to brutal side, there is a common abide by the "gentlemen's agreement" ─ ─ It is a gesture language. In the fierce battle, the weak as long as ran away or lying on the floor begging for mercy to the strong, strong will spare it a life. Competition in long-term survival of mammals, in order to survive a fierce struggle. General performance of the different types of law of the jungle, that is, there is also a territory with the type of dispute, the food battle, the fight against female breeding season competition and so on. However, the adaptability of the long-standing, so that the struggle between the same species, the total remained at a certain extent, will not be induced into the disaster of World War II genocide. African lion in defeat, it will lie on your back, showed the soft and vulnerable to each other in the stomach, the winners to see this scene, no longer entangled with it. Winner never use their advantageous position to hurt each other, as long as the opponents concede that it no longer care about. Cheetahs during the fight, fell to the ground if the party stood, his back toward the earth groaned softly, said he had surrendered to the other side will stop the attacks. In the fight against the wolf, who was defeated, it will lie on the ground sideways, his own fatal ─ ─ parts exposed to the opponents in front of the throat, which means that the yield to each other. Skunk living in North America is the use of ear-piercing screams that yield to the strong. Several examples can be seen from the above, the beasts inside, generally will not kill opponents and then quickly _set_ the phenomenon, the losers always take a subservient position or special sounds to indicate, finally leave for good . In addition, the beast still has a natural rule, that the mother has understood the power of the offspring, all offspring and their parents are not to fight, their parents are obedient to. If bad weather, lack of food, cub even starve to death, nor from the parents mouth snatch, this is the African lion cubs in the drought season, a large number died of a cause. Mammals such as the existence of "gentlemen's agreement" and the natural rules, makes a variety of mammals in a complex environment, to continue to thrive going to become a member of the biosphere.