Flat-backed Millipede

Members of the order Polydesmida are also known as "flat-backed millipedes", because on most species, each body segment has wide lateral keels known as paranota.

Polydesmida walk with their heads down. Even if they walked with their heads up they could not see where they were going, because Polydesmida have no eyes and are blind. They sense what is in front of them using their antennae.