Turn their head 180 degrees.Their articulation of the head is remarkably flexible, permitting nearly 300 degrees of movement in some species, allowing wide vision.
A Praying Mantis bites off their mates head after having sex. And they can turn their heads side to side 180 degrees.
It has a different name
they can turn there head 180 degrees :]
they are the only ones that look like their praying.