Cultural evolution refers to the way cultures change and develop over time. This process can occur through various means, such as innovation, social learning, and the exchange of ideas between different groups. As societies adapt to new environments or challenges, their beliefs, practices, and technologies can evolve, leading to new cultural forms. Factors like migration, trade, and communication play significant roles in cultural evolution. When people from different backgrounds interact, they share customs and knowledge, which can lead to the blending of cultures. This ongoing process helps shape the identities and practices of communities around the world.