Last Updated: Tuesday, January 15, 2013, 10:19
Scientists have been able to reconstruct, for the first time, the intricate three-dimensional structure of the backbone of early tetrapods, the earliest four-legged animals.
Last Updated: Wednesday, October 27, 2010, 18:53
Scientists say that conservation efforts are having an impact on slowing the extinction of vertebrates.
Last Updated: Tuesday, May 18, 2010, 13:59
A new study says that modern-day lizards, snakes, frogs and mammals - including humans - owe their existence to a mass extinction of fish 360 million years ago.
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