Same with yours. Newgrounds expects me to explain a family tree in 12,000 words, I'll do it shorter. So when a human has sex with another human, sometimes semen can be produced by the penis. To make babies, the semen can be put into the vagina. After some months of pain, the female will have the baby born. That baby is likely or unlikely you, looking at this review.
The family tree connects the ancestors of your family to your modern family, and we don't know the first human so family trees are technically incomplete, and the fact family trees keep expanding also keeps it incomplete too.
MrSafetySMPFilms 
