News of the WeekPaleontology

Young Dinos Grew Up Fast

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Science  23 Oct 1998:
Vol. 282, Issue 5389, pp. 603-604
DOI: 10.1126/science.282.5389.603a

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SNOWBIRD, UTAH-- A detailed look at the bones of a species of giant dinosaur, described here earlier this month at the annual meeting of the Society of Vertebrate Paleontology, suggests that these hulking beasts could grow to full size--tens of tons and longer than a tractor-trailer--in just a decade. The finding makes sense to paleontologists, because hatchlings wouldn't survive long if they grew slowly like other reptiles, due to the threat of predators and the dangers of living with a 30-ton mother.