1.   When a dog snarls, it is threatening attack.

2.   The dogs snarled at the intruders.

3.   Flushed and harassed, she felt rather like a bone two dogs were snarling over.

4.   As if in response, two nearby dogs snarled at each other before being reined in by their owners.

5.   Dogs snarl, the housekeeper ignores Mary and there are strange screams in the night.

6.   Two Rottweiler guard dogs snarl behind barbed-wire fences.