Word Combat

What's the difference between these 2 words?
Extinct   v.s.   Exist
EXTINCT means the whole species will never be reborn again.
Sentence using EXTINCT. The dinosaurs are extinct.
EXIST, however, means that there is such a thing.
Sentence using EXIST. Vampires don't exist.

Till the next Word Combat, I'm Jun-Kai, the Combat Colosseum owner!