<Li> Growling: Often accompanied by hissing and spitting, the cheetah growls to show its annoyance, or when faced with danger . A study showed that growls consist of numerous short pulses with a combined duration of up to five seconds . </Li> <Li> Moaning or yowling: This is an escalated version of growling and is often combined with it . It is typically displayed when the danger increases . A study found that yowls could last as long as two seconds . </Li> <Li> Agonistic vocalisations: Eklund used this term as a reference to a combination of growls, moans, and hisses that is followed by spitting, a feature more conspicuous in cheetah than in other cats . In addition to spitting, the cheetah will hit the ground with its front paws . </Li> <P> In a 1991 book, biologist R.D. Estes had enlisted, in addition to the aforementioned vocalisations, some other sounds made by the cheetah: </P>

How to say the scientific name for cheetah