Abstract
Imagine an overgrown rainforest full of all kinds of different creatures. That is exactly how I want you to picture your brain. In your dense and lively brain-jungle, the billions of trees are called neurons and, for every neuron-tree in your brain, there are one or more mystical jungle-creatures. Some of these creatures wrap tightly around the tree trunks, while others nurture the trees’ leaves and hug their roots. A special kind of dynamic jungle-creature eats damaged branches and keeps intruders away. These creatures are all called glial cells and, without them, your brain-jungle would collapse. Let us explore this remarkable jungle, to learn more about these astonishing glial-creatures and how we can observe them.