How does a one-tonne dino hatch its eggs? Carefully

Most dinosaurs buried their eggs and hoped for the best, but some species—including a few hefty ones—built nests and pampered unhatched offspring much as birds do today, researchers reported Wednesday.

Horse-riding changed Eurasia's ethnic profile: studies

Horse domestication changed the face of Eurasia, helping ancient Huns and Mongols supplant western "Indo-European" farmers in an incremental westward drive that also brought Hepatitis B and plague, scientists said Wednesday.

The secret life of teeth: Evo-devo models of tooth development

Across the world of mammals, teeth come in all sorts of shapes and sizes. Their particular size and shape are the process of millions of years of evolutionary fine-tuning to produce teeth that can effectively break down the ...

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