Genetically modifying animals to have ideal personality traits, especially for pet breeding needs, is a complex and ethically controversial issue. Although science and technology have made progress in the field of gene editing, such as CRISPR technology, direct manipulation of personality traits still faces many challenges in current biological understanding. Here are some possible research directions and their considerations: 1. **Understanding the relationship between genes and personality**: First, researchers need to further understand which genes are associated with personality traits (such as docility, obedience, etc.). Current research shows that personality traits are often controlled by multiple genes and are affected by the environment. Therefore, simply modifying a gene may not achieve the desired behavioral changes. 2. **Selective breeding**: In modern breeding, selective breeding is a common method. By selecting animals with ideal personality traits for breeding, these traits can be enhanced to a certain extent. This method is relatively safe and can avoid the uncertainties that may be caused by some genetic modifications. 3. **Gene editing**: Once the target genes related to personality are identified, scientists can use gene editing technology (such as CRISPR-Cas9) to modify these genes. This process needs to be carried out accurately and carefully, because genetic changes may cause unexpected side effects. 4. **Ethical and legal issues**: Ethical and legal issues must also be considered when conducting genetic modification. Many countries have strict regulations on gene editing technology, involving considerations such as animal rights, ecological balance and public safety. 5. **Behavioral training and socialization**: In addition to genetic modification, behavioral training and socialization of animals also play an important role in their character formation and performance. Through professional training and interaction with humans, the docility and obedience of animals can be effectively cultivated. In general, although genetic modification provides a possible way, achieving ideal personality traits still requires comprehensive consideration of factors such as genes, environment and training. At the same time, related ethical and legal issues cannot be ignored. In practice, it may be more feasible and acceptable to prefer selective breeding and behavioral training.