Behavioral modernity is a term used by scientists who study people and where they come from. It means the behaviors and ways of thinking that make us, humans, different from other similar creatures like Neanderthals and primates.
Scientists believe that modern human behavior includes things like thinking about abstract ideas, planning for the future, using symbols (like art and decorations), making music and dancing, hunting big animals, and using advanced tools like blades. These behaviors come from our thinking and culture.
All true, but some of these things were done by earlier versions of mankind, including (for example) hunting large animals. Homo sapiens is only distinct in the extent to which they did all these things.[1]