Maybe you do not think often about having a neck, given said neck's relatively unobtrusive placement below your head and out of your line of sight. I did in fact think that fishes had no necks, though it was more of a passive belief than any conclusion I had actively come to. I read on, and what I learned made me rethink all my preconceived notions of necks and what it means to have them. Does this "neck" not offer even more mobility than our so-called necks do? A new, comprehensive definition for necks that actually applied to every vertebrate would allow scientists to better compare the role and evolution of necks in different groups.