Howlers

From Resistance - Wiki on Neoseeker

The Howlers are the four-legged support for the Chimera. They have a thick and leathery hide which allows them to easily shrug off shots from lighter guns. When trying to dispatch one of these, simply fire a few double rounds from the Rossmore 236.

When you hear the "chilling" howl (hence their name) of the Howlers, make sure you are prepared for the oncoming clawing or mauling by them.