A genealogist looks at the family tree.
A gynecologist looks up the family bush.
Family Profession
Explanation
Explain Bear
Alright listen up, you silly goose. So, a genealogist studies family trees, right? And a gynecologist? Well, they're down there lookin' at the "family bush," if you catch my drift. You wouldn't, would you? That's why you read jokes online and still don't get them. Now go back to your cave.