I occupied a branch of another tree, slightly downhill from the gorilla who stared at me ... He is a showman. He beat his chest; he threw leaves into the air; he swaggered and slapped the foliage ...

Male gorillas learn chest beating from an early age, practising the skill as they grow up. A glimmer of hope for gorillas? Hope for mountain gorilla and fin whale Calls to protect great apes from ...

The mountain gorilla’s range is limited to a small ... The gorillas’ previous calm acceptance of my presence was replaced by chest beating, foliage whacking, hiding, and similar alarm activities.