The clams that fell behind, and what they can tell us about evolution and extinction

PHYSorg
May 31, 2023, 8:30 am217 pts
Every so often, life on Earth steps onto a nearly empty playing field and faces a spectacular opportunity. Something major changes—in the atmosphere or in the oceans, or in the organisms themselves —and the existing species begin to branch out into a brand-new world. Scientists are fascinated by this…

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