Visit from someone who has been involved in Gorilla Conservation. Talk about why gorillas are endangered, what/ who is threatening their habitat, how and where they live, what they eat etc. Show photos of these.
Black face paint/ charcoal
Show Beavers how Gorillas eat Bamboo using celery
Nose prints (how to identify Gorillas) - Beavers to do this with blackened noses on paper and see if they can identify each other
Talk like a gorilla - experiment with the noises gorillas make to communicate
Posters - make posters for "Protect the Gorillas"