What is the difference between a clan and a band?

A clan is typically a larger social group that shares a common ancestry or lineage, often with a strong sense of identity and kinship, usually consisting of multiple families. In contrast, a band is usually a smaller, more mobile group of individuals or families who come together for a specific purpose, such as hunting or gathering, and may not necessarily share a common ancestry. While clans often have more permanent social structures, bands tend to be more fluid and temporary.