It has long been known that the identity of each vertebra is due to the activation of a class of genes called "Hox." Now, researchers in Portugal show that besides determining the identity of the ...

The lumbar vertebrae are the largest movable bones of the backbone. Their large size and bone strength is necessary because these vertebrae support more weight than the upper two segments of the ...

May 14 (UPI) --According to a new study, vertebrae numbers vary the most among mammals that spend much of their life hanging and swinging from tree limbs, like apes and sloths. Previously, scientists ...

Correlation between the number of vertebrae and regions with habitat: Picture of the backbone of a species living in shallow waters (left) and the open ocean (right) showing the differences in number ...

The spine, or backbone, is a long column of bones that runs down the center of a person’s back. It is essential for many functions, such as movement, support, and protecting the spinal cord. A ...