...to study how the brain encodes places (map), directions (compass), and goals. Navigation is about getting from point ‘A’ to point ‘B’. We know a lot about encoding of point ‘A’ (the animal’s position) by place- and grid-cells, but much less is known about the neural representation of point ‘B’ (the animal’s goal). Likewise, little is known about the neural basis of navigation in complex environments. We will study these questions in Egyptian fruit bats navigating through a very large maze containing several goals; neural activity will be recorded by a world-unique wireless electrophysiology device (neural-logger), which we developed. These experiments will provide novel insights on the neural basis of natural navigation.