Gorilla Running Down Hill Chest Beating Stock Photo (Edit Now) 1415209232
Brian Lilly 在Twitter 上:"Western Lowland Gorilla 'Kiondo' chest beating with four carrots in his mouth @PaigntonZoo #gorilla https://t.co/6rrK759pm7" / Twitter
Gorillas beat their chest to prove who is the bigger foe - BBC Science Focus Magazine
Meet the Gorillas | Cute animals, Funny animals, Silverback gorilla
Gorillas don't bluff when they chest beat: honest signalling indicates body size | Max-Planck-Gesellschaft
The shocking, real reason why gorillas pound their chests