Iced Chocolates and Radioactive Squirrels

I’ve always imagined a squirrel's nest as a hole in the trunk of a tree lined with soft feathers and leaves to keep them warm. Given that we don’t have squirrels in Western Australia, I’ve relied on picture books and movies to accurately depict a squirrel's nest, and I’ve never questioned it—then again, maybe Bali squirrels are a different breed. At this moment, I’m sitting on my hotel balcony watching squirrels dive in and out of a hive-like contraption of sticks, twigs, and leaves, somehow held together between the outer bushy branches of a tree. I’d love to know what holds it all together: tree sap? Saliva? Human hair?