Which animal did dogs attack without warning?

Please provide me with more context! I need more information to answer your question. For example:

* Where did this attack happen? (e.g., a park, a home, a zoo)

* What kind of dogs were involved? (e.g., breed, size)

* What was the animal doing before the attack? (e.g., walking, sleeping, eating)

Once you give me more information, I can try to give you a more helpful answer.