For instance, the lower-back trauma found (and reported in an earlier article by Dr. These damaged bones are incredibly valuable for better understanding extinct animals' behavior. 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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