Ruffed lemurs use alarm calls that differentiate between ground and aerial predators. For instance an "abrupt roar" or "huff" alerts the group to an avian predator, and a "pulsed squawk" or "growl-snort" communicates the existence of a mammalian ground predator. When sounding these calls, such as the pulsed squawk, adults direct them at the predator after moving to a safe position. Once the alarm call is sounded by one individual, the resulting chorus can even reach the furthest ranging community members.