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Survival of Non-avian Dinosaurs
Paleontologists have determined the ages of a population of non-avian dinosaurs. Using this information, they inferred which factors led to survival or death of group members.
Studying the bones from the North American tyrannosaur Albertosaurus sarcophagus, researchers found that fhese animals showed exceptional survivorship once they passed the hatchling stage, and that factors such as predation and [timing of] entrance into the breeding population may have influenced survivorship.
This image accompanied NSF press release, "Paleontologists Establish First Age Distribution of Non-avian Dinosaur Population."
Credit: Zina Deretsky, National Science Foundation
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