Culture is learned

Human infants come into the world with basic drives such as hunger and thirst, but they do not possess instinctive patterns of behavior to satisfy them. Likewise, they are without any cultural knowledge. However, they are genetically predisposed to rapidly learn language and other cultural traits. New born humans are amazing learning machines. Any normal baby can be placed into any family on earth and grow up to learn their culture and accept it as his or her own. Since culture is non-instinctive, we are not genetically programmed to learn a particular one.

North American childreninformally learning theculture of their parents
Every human generation potentially can discover new things and invent better technologies. The new cultural skills and knowledge are added onto what was learned in previous generations. As a result, culture is cumulative. Due to this cumulative effect, most high school students today are now familiar with mathematical insights and solutions that ancient Greeks such as Archimedes and Pythagoras struggled their lives to discover.
Cultural evolution is due to the cumulative effect of culture. We now understand that the time between major cultural inventions has become steadily shorter, especially since the invention of agriculture 8,000-10,000 years ago. The progressively larger human population after that time was very likely both a consequence and a cause of accelerating culture growth. The more people there are, the more likely new ideas and information will accumulate. If those ideas result in a larger, more secure food supplies, the population will inevitably grow. In a sense, culture has been the human solution to surviving changing environments, but it has continuously compounded the problem by making it possible for more humans to stay alive. In other words, human cultural evolution can be seen as solving a problem that causes the same problem again and again. The ultimate cost of success of cultural technology has been a need to produce more and more food for more and more people.

Culture Is An Adaptive Mechanism

The first humans evolved in tropical and subtropical regions of Africa about 2.5 million years ago. Since then, we have successfully occupied all of the major geographic regions of the world, but our bodies have remained essentially those of warm climate animals. We cannot survive outside of the warmer regions of our planet without our cultural knowledge and technology. What made it possible for our ancestors to begin living in temperate and ultimately subarctic regions of the northern hemisphere after half a million years ago was the invention of efficient hunting skills, fire use, and, ultimately, clothing, warm housing, agriculture, and commerce. Culture has been a highly successful adaptive mechanism for our species. It has given us a major selective advantage in the competition for survival with other life forms. Culture has allowed the global human population to grow from less than 10 million people shortly after the end of the last ice age to more than 6.5 billion people today, a mere 10,000 years later. Culture has made us the most dangerous and the most destructive large animal on our planet. It is ironic that despite the power that culture has given us, we are totally dependent on it for survival. We need our cultural skills to stay alive.