Key characteristics refer to the essential traits or features that define a person, object, or concept. These traits help distinguish one entity from another and can include physical attributes, behaviors, or qualities. For example, the key characteristics of a dog might include loyalty, playfulness, and a strong sense of smell. In various fields, identifying key characteristics is crucial for analysis and understanding. In biology, for instance, key characteristics of a species can include its habitat, diet, and reproductive methods. Similarly, in business, key characteristics of a successful company may involve innovation, customer service, and market adaptability.