When two friendly cats meet, the nose, head and the whole body wipe on themselves, while moving quietly. - The angry male is erected, showing each other their long sharp tusks and roaring aloud. - And the defenseless lion cub and lays woefully when they are afraid of something. - Animals cannot communicate with words like us humans, but have their own language. They can rejoice, they can get a lot of furious and can be afraid. And all this expresses their body.