Gorilla (Male)Schleich 14770 Gorilla (Male). Male gorillas often beat their fists on their chests. They do so to show who is the strongest in the group. However, it can also be a kind of greeting. Gorillas don't just walk on the palms of their hands, but also on their knuckles. For this reason, they're also known as knuckle walkers. Fun Fact: Male gorillas can weigh up to 200 kg. Approx: 10 x 5. 4 x 8. 4cm (LWH). Suitable for ages 3+. Made from PVC, painted with