A plant-eating dinosaur that once grazed the greenery in what is today northwest China could hold the title of the longest neck ever known, according to a new analysis of its fossilized bones.
lift its head without collapsing under the weight of its neck? What about its turning circle, should something approach it from behind?Barrett."It would require a lot of muscles to hold up a neck that size, and then there's the question of how it gets air down to the lungs and back up again."
At least on that last point, Barrett and his colleagues aren't totally in the dark. Using CT scans, the researchers were able to peek into the fossilized neck bones to help theorize waysand their living relatives, birds,had numerous balloon-like air sacs all the way down its windpipe, into its lungs and chest. These air sacs even formed hollows insides their bones, creating a lattice of air pockets larger than the lungs themselves.M.
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