The ravager's attack range works poorly. When it attacks you, just take a step back and even if the biting animation goes through you, you will not take damage. You are literally capable of killing a ravager without equipment for it. 

Steps to Reproduce:

• Spawn a ravager. 
• Wait for it to come to attack you.
• When you hear him attack, press the button to walk backwards (just a moment will suffice).

Observed Results:

For going back half a pixel, you take no damage. Even if the ravager's mouth is right on your face.

Expected Results:

You take damage because you are only half a millimeter away.