Why are Вампиры and Werewolfs enimies

Well it really depends on which show/movie your looking at , Im Twilight its because the Вампиры kill people and the Волки are the protectors but in vampire diares its because there both uncontrollable things so really it depends but form all the fiction things i have read over the years its еще of just a mortal enemy type thing that there naturaly born to kill each other

Вампиры and werewolfes are enemies because they smell to each other but if Ты have read the Книги Ты know that if they try to get along they can.

because, werewolfs are their 2 protect human life and Вампиры end it.

The Волколаки came into existence as protectors of their tribe. Then a pair of Вампиры attacked the tribe and another neighbouring tribe. Those Вампиры were the most dangerous enemies the Волки had ever fought. They've been natural enemies ever since.