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Kinematic models of Anomalocaris canadensis, fully outstretched (top) to rolled up (bottom left) with the range of motion shown in gray (bottom right). Credit must be given to the creator.
Reconstruction of Anomalocaris, a formidable predator from the Cambrian Period This dramatic increase in animal diversity, 545 to 530 million years ago, is known as the Cambrian explosion. The ...