The oldest fossilized remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...
Whale ancestors were terrestrial mammals that walked on four legs. This bone structure that helped them walk eventually ...
Giant 'cow of the Cretaceous' discovered almost 100 years ago identified as new duck-billed dinosaur
Scientists have discovered an enormous species of duck-billed dinosaur that lived in what is now New Mexico about 75 million ...
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