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Dinosaur Bone Bed Indicates Underwater Graveyard

Multiple specimens of Edmontosaurus give evidence of catastrophic water burial after transport by an underwater debris flow.

Rethinking the Geological Layers

One of the most formative ideas in Darwin’s intellectual journey was the concept of gradualism, the principle of “small agencies and their cumulative effects.”  This idea became a dominant motif in his philosophy of life.  Describing how the assumption of gradualism permeated his last book (on earthworms) shortly before his death, Janet Browne, in her […]
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