Because they all have the same DNA and no dental records.
Pumpkin
Texans tend to ride horses whereas rednecks ride their cousins. -American Sniper
They both run in your jeans (genes)
Everyone has the same DNA.
Billy Eichner has a theory... Billy Eichner says I bet those escaped convicts are going to see Ted 2.
Tequila Mockingbird
Because they all share the same DNA and there are no dental records.