A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.
The oldest fossilised remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...
Morning Overview on MSN
Dinosaur eggshells can 'tick' like clocks, revealing deep time
Dinosaur eggshells, once treated as background scenery in fossil digs, have turned out to be some of the most precise ...
The past hundred million years or so have not been kind to the dinosaurs. Once formidable “terrible lizards,” their closest modern descendant, is the distinctly unimpressive chicken. Now scientists ...
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