This week, I have another fun challenge for fans of our western lowland gorillas and orangutans. Take a close look at these two casts in the shape of great ape hands. Which one belongs to a gorilla, and which to an orangutan? As you can see, a human hand seems quite tiny by comparison! The answer is at the end of this blog. (Hint: gorillas are mainly terrestrial, or ground-dwelling, apes; orangutans are mostly arboreal, or tree-dwelling, apes.)
When gorillas are content, they make a vocalization called a ‘pleasure rumble.’ While Moke is playing, his mother, Calaya, will make a staccato grunt to convey her pleasure. Moke, too, makes his own pleasure grunts while he plays. Perhaps this is the elementary start of a full pleasure rumble.