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 ...

The March 2005 issue of Biology of Reproduction contains a report of some intriguing findings in cloned offspring created when nuclei from one genus of fish were transplanted to enucleated eggs of ...

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 ...

Snakes have graceful, elongated bodies containing hundreds of vertebrae. This extreme of morphology stems from evolutionary changes in a developmental clock that regulates body patterning. At first ...

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 ...

Though both giraffes and humans have the same number of individual neck bones (known as vertebrae), the two species also have size and structural differences. Just like humans, giraffes are said to ...