Yes They do. This benefits genetic diversity which Is essential to the survival of a species. It helps because offspring can be a mix of their mother and their father. Diminishing the possibility of hereditary diseases that run in one of their families.
Answer:
The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.
