Part of the richness of La Brea Tar Pits' collection are the fossils exhibiting signs of injury and disease-the more than 8,000 specimens that make up the pathology collection. Mairin Balisi, Postdoctoral Fellow at La Brea Tar Pits, in collaboration with orthopaedic surgeons at Cedars-Sinai hospital, used 3D image reconstruction of external and internal bone morphology of a deformed Smilodon hip bone to reveal this saber-toothed cat suffered from hip dysplasia, suggesting a social structure that helped members survive to adulthood even when they couldn't hunt for themselves due to this birth defect. Published in Scientific Reports, a new study led by Dr.
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