by talking to each other
They talked to each other.
by speaking to each other
Telepathy
it helped people communicate with each other
they wrote letters to each other. And they would talk to each other.
Insects communicate with each other by sensory.
I do not know how Jaguars communicate with each other. They might growl or purr.
They communicate by talking to each other
The same way anybody else does.
Social Change A+
They communicate with each other through Canalicili Extensions.