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Zebras use their ears to express their feelings. When calm, its ears will be straight up, when frightened its ears will move forward, when angry, its ears will move backward.
It is generally believed that the giraffe is mute. However, recent studies have shown that communication between giraffes is very complex, using a sound wave that cannot be heard by human ears.
Leopards live in a variety of habitats, from 100 meter sea level lowlands to mountains of 3000 meters altitude.