Sally knows the following about the reproduction of bees:
She observes that a male bee has 1 parent, 2 grandparents, and 3 great-grandparents.
How many great-great-grandparents does a male bee have?
Clarification: The reproduction of bees doesn't behave in the same way as that of humans. Fertilized eggs will hatch into female worker bees, while unfertilized eggs will become drones or honey bee males.