Riddle

They are toothy nocturnal immortals.

Choose an answer

A.Werewolves
B.Bats
C.Zombies
D.Vampires
Hint: It's a word with 8 letters, starting with "V".

Answer

Vampires

Why this is the answer

Vampires are traditionally depicted with fangs, active only at night, and unable to die of old age.

This riddle is filed under Hard/Difficult Riddles and rated Easy.