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A new scientific review suggests that ancient supercontinents, mountain building, and changes in Earth's magnetic field helped trigger the Cambrian explosion. Evolution often unfolds over millions of years, yet many of the major animal groups alive today made their first clear appearance in the fossil record during a remarkable burst…
The American Nuclear Society recently hosted the latest webinar in its ongoing Educator Training series. This newest installment featured Christine Roy, a structural engineer at Simpson, Gumpertz & Heger, who led a presentation…