‘Kraken’ fossils show enormous, intelligent octopuses were top predators in Cretaceous seas Fossil jaws from colossal ...

Fossil records of the holes drilled in clam shells before and after a mass extinction two million years ago show patterns of predator-prey behavior indicating that although diversity recovered rapidly ...

Top of the encrusted surface of a brachiopod shell, showing the "war" between an edrioasteroid (star-shaped organism at center) and a fast-growing bryozoan colony. From Sprinkle and Rodgers 2010. Back ...

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