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2008-10-24 13:10:00

The skull of a young dinosaur that lived 190 million years ago is revealing new clues as to how some carnivorous dinosaurs evolved into plant eaters. The tooth structure of the young Heterodontosaurus reveals both sharp fang-like canine teeth for biting and tearing, as well as flat molar-like teeth designed for grinding. "This juvenile skull indicates that these dinosaurs were still in the midst of that transition," said Laura Porro, a post-doctoral student at the University of Chicago, who...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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