No, they won't get extinct even if the humans gone extinct. They have survived from a long long time and still living happily. Maybe the nature is always keeping them for some purpose we don't understand yet.
SW-User
@JustAHappyPerson: I know it's impossible for them to go extinct. And yeah..perhaps they have some mysterious benefits we're yet to discover. But right now, all I see is them flying around, sucking blood, passing diseases
