Chordate of the three subdivisions of chordates, all have distinct skulls. They include the hagfish, which have no vertebrae. Michael J. Benton commented that "craniates are characterized by their heads, just as chordates, or possibly all deuterostomes, are by their tails". Most craniates are vertebrates, in which the notochord is replaced by the vertebral column. These consist of a series of bony or cartilaginous cylindrical vertebrae, generally with neural arches that protect the spinal cord, and with projections that link the vertebrae. However hagfish have incomplete braincases and no vertebrae, and are therefore not regarded as vertebrates, but as members of
What Are You So Scared Of? What Are You So Scared Of? What Are You So Scared Of? is the debut studio album by Australian rock band Tonight Alive, released on 14 October 2011 through Sony Music Australia. The standard CD version of "What Are You So Scared Of?" contains 10 pre-gap hidden acoustic takes of the album. "Let It Land" EP was released to accompany it; it shares the track "Let It Land", and also contains a new song and the three acoustic versions which were unable to fit on the album. Tonight Alive traveled to Los Angeles to record the album with producer Mark