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Gorillas don't bluff when they chest beat: honest signalling indicates body size | Max-Planck-Gesellschaft
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Silverback Gorilla Beating Chest Stock Photo - Download Image Now - Gorilla, Chest - Torso, Beating Chest - iStock
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Stock photo of Mountain gorilla (Gorilla beringei) silverback beating chest and charging.... Available for sale on www.naturepl.com
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Why do gorillas beat their chests? New research gives insight into behaviour of silverbacks | UK News | Sky News
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