article_snippet: Experts  were among the first creatures to invade the land during one of the great evolutionary transitions in Earth's history.
article_snippet: Acanthostega gunnari lived between 380 and 360 million years ago when animals made the transition from the sea to land.
article_snippet: However, after hundreds of millions of years buried in the ground, fossils are often damaged and deformed.
article_snippet: To reconstruct the skull of the species from numerous pieces, scientists from the University of Bristol put fossil specimens of Acanthostega gunnari from East Greenland into a CT scanner, before using a computer programme to assemble a CT scanner.
article_snippet: The reconstruction has also provided some clues as to how the species fed.
article_snippet: The size and distribution of the reptile's teeth and the shape of contacts between individual bones of the reconstructed skull, called sutures, suggest Acanthostega may have initially seized prey at the front of Acanthostega jaws using Acanthostega large front teeth and lower jaw.
highlights_snippet: Bristol University researchers scanned bones of Acanthostega gunnari .
  