Rotatable heads Owls can rotate their heads up to 270 degrees, a remarkable adaptation that allows them to see in all directions without moving their bodies. This head rotation is facilitated by ...

1. A female owl is normally around 25% larger than her male counterpart. One theory behind the size discrepancy is that the males are more agile in order to efficiently catch their prey.

This has sparked huge excitement, but many experts feel that such an extraordinary ability may not be completely allowed by all anatomical factors. How owls achieve full 360-degree head rotation ...