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Reports on thousands of fossils found in Brazil's Toca da Boa Vista cave. Comments from Walter Hartwig, co-leader of the cave's first scientific survey; Details of the fossils and what may have caused the animals' extinction.

Reports the discovery of fossils in Palm Springs, California. Comments of Kathleen Springer, a San Bernardino County Museum paleontologist; Examples of the fossils found, including mastodons, camels, black bears and birds; How the fossils were discovered during the construction of a water reservoir.

Suggests that a shrew-sized mammal that lived in Australia 115 million years ago may have been a placental mammal. The discovery of a jaw by Thomas Rich and Patricia Vickers-Rich in a long-term Society-funded search for Cretaceous fossils.