👉 In biology, a family is a group of closely related species sharing a common ancestor. The terms "superfamily" and "genus" are often used interchangeably to refer to families in biology. A superfamily is a group of related families that share a common ancestor or a common ancestor's lineage, while a genus is a single family that shares a common ancestor with its closest relatives. For example, the family of mammals (Mammalia) includes all living mammals and all extinct ones as
