Tigers don't attack tourists who take pictures. What is the reason?

Domesticated. Domestication of wild animals is a special means for human beings to utilize natural resources, and comprehensive control and reproduction of wild animals can be realized through domestication. According to different purposes and requirements, the training methods are different.

The basic concept of domestication. Domestication is achieved by creating a new environment for all kinds of wild animals and ensuring food and other necessary living conditions. The most important period is in the early stage of individual development, through artificial feeding and management, to create special conditions for hydrothermal metabolism, so that domesticated animals are not attacked by enemies and infected by parasites and infectious bacteria. In addition, domestication is the control and application of animal behavior. Because of the close relationship between animal behavior and production performance, mastering the laws and characteristics of animal behavior and conducting artificial directional domestication can promote the improvement of production performance and produce obvious economic effects. For a long time, because human beings have mastered the means of domesticating animals, it is possible for animals to mutate in the direction required by human beings. Up to now, there are thousands of fully domesticated animals such as mammals, birds, fish and insects, and semi-domesticated animals such as fur animals, deer, experimental animals and herbivores. Practice has proved that it is entirely possible to domesticate animals. With the continuous development of human economic life, there are more and more kinds of animals domesticated and bred. Domestication of medicinal animals is an important aspect. Theories and methods of domestication. Domestication is an artificial conditioned reflex based on the innate instinct behavior of animals, and it is the acquired behavior of individual animals. This artificial conditioned reflex can be continuously strengthened or subsided, indicating the strengthening or weakening of domestication. Therefore, artificial domestication can't be regarded as once and for all, and it needs constant consolidation. Domestication in early development stage: This domestication method is based on the plasticity of larvae, and the effect is generally good. For example, in Yellow weasel, if you don't open your eyes for 30 days after delivery, you can keep them artificially by isolating them from the mother animals, and then contact with the artificial environment after opening your eyes, so you can accept the management of artificial feeding well. For example, young animals fed by female ferrets after giving birth are often domesticated artificially for several years, and their wild behavior will not change. Another example is the young deer that has been artificially fed after giving birth to colostrum, and the domestication foundation is very good. When I grow up, I will be the backbone deer in the core group. However, it is very difficult for a young deer that is breastfed by a doe after delivery to artificially breastfeed after a few days. Such young deer are domesticated in other ways when they grow up or show poor domestication foundation in grazing activities, and generally cannot become backbone deer. Individual domestication and group domestication: Individual domestication is the individual domestication of each animal. For example, every animal in the circus needs to train a unique set of performance skills. Large animals living alone in the zoo are trained to overcome shock and irritability, and the service training of young animals belongs to this domestication. In the wildlife breeding industry, it is also necessary to carry out supplementary individual domestication for individuals with poor individual activity performance (that is, individuals with insufficient domestication). But in the field of wildlife breeding, group domestication has greater practical significance. Group domestication is under the guidance of a unified signal, so that each animal can establish a * * * conditioned reflex and produce consistent group activities. Such as foraging, drinking and grazing, all move together regularly under the guidance of a unified signal, which brings great convenience to feeding management.