Possum model is a kind of experimental model commonly used in biology and ecology research. Its unique physiological characteristics and adaptability make it an important tool to explore many biological problems. As a small marsupial, possums have shown unique value in the study of the immune system, metabolic processes and ecological behavior. One of its remarkable characteristics is that it has a strong ability to adapt to a variety of environmental pressures. Possums, for example, are able to survive in a wide variety of habitats, from cities to forests, and are quite capable of surviving and reproducing.

In ecological research, possum models are used to explore a variety of ecological interactions, especially in food chains and interspecific relationships. Possums are omnivorous animals that are able to adapt to varied food sources, which allowed the researchers to observe their foraging behavior and growth patterns across different food resources. These observations provide important references for understanding the dynamic balance of ecosystems.

At the same time, possums also play an important role in medical research. Because of its ability to study natural immune responses, scientists have become concerned about the possum's potential for infectious disease control. Possums have unique antibodies in their immune systems that have been shown to be uniquely effective at warding off pathogens. This provides new ideas for medicine in the treatment and prevention of human diseases, especially in the study of certain viral infections.

In behavioral ecology, the nocturnal and social behavior of possums has attracted much attention from researchers. Possums have unique social structures and behavior patterns, and their strategies for foraging and avoiding enemies show a high degree of adaptability. By observing possum behavior, researchers have gained new insights into understanding the evolutionary and ecological functions of animal behavior.