In biology, we also see this in the evolution of the optic nerve. For most species, the optic nerve is the largest of its kind; it transmits large amounts of information across the body to its cerebral support. It is also a very short nerve made up of a bundle of cerebral fibers. When we apply this to a drone, the link (the bus) between the sensor and the processor requires an essential exchange of information, which implies optimizing the length of the bus.
Anatomically, the head of some species is often detached from the rest of the body. Some flying species (insects, birds, mammals) have their head located at the front of its frame, extending the view of the rest of the body - especially its wings. The placement of its head also allows its eyes to be positioned in such a way as to have an excellent field of view in all directions, and turning the head allows most flying species to see precisely behind them.