How Do Gorillas Communicate?

However, body postures and facial expressions also indicate the gorillas' mood. Certain behaviour patterns involve certain body postures and often require another animal to do something. Postures signalling mood or intention to the partner are sometimes even used for communication over greater distances; this is particularly true for display behaviour.
Overall, the gorillas' senses resemble those of humans. They use all senses in their communication with conspecifics - not only hearing and seeing, but also touching and smelling. Silverback males have a characteristic smell. In a dangerous situation, they additionally emit a very specific scent which can be smelled at many metres and which alarms the group without any noise.