Your current chain: State of matter Life > Kingdom Animalia > Phylum Chordata > Subphylum Vertebrata
(From Wikipedia) Vertebrates are deuterostomal animals with bony or cartilaginous axial endoskeleton — known as the vertebral column, spine or backbone — around and along the spinal cord.
FACT: Despite the relatively "vertebrocentric" view of nature as being full of bony animals, vertebrates make up only around 5% of all recorded species of living thing!
Currently discovered: 0/1 Superclasses, 5/8 Classes
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