While the fossil was unmistakably a tegu vertebra, it wasn't an exact match with any of the specimens in the database. This meant the team had uncovered a new species, which they named ...

Spinal disks are rubbery pads between the vertebrae, the specialized bones that make up the spinal column. Doctors call them intervertebral disks. Each disk is a flat, circular capsule about an ...

The spine (aka backbone) is a linked column of bones running from the head down to the lower back. Bone segments form the column. One bone segment is a vertebra, and multiple bone segments are ...