The La Brea tar pits in Los Angeles—actually seeps of smelly asphaltum—are loaded with fossils. New analyses of chemicals inside their ancient teeth give clues as to what they ate and maybe why some of them went extinct.
Over 100 years of excavations at La Brea have yielded about 3.5 million specimens.1 Most are individual bones, but they also include at least 6,300 insect-body parts.2 Pred… More…
Source: icr.org
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