Yet birds differ from their reptile ancestors in many important ways. A turning point in their evolution was the development of larger brains, which in turn led to changes in the size and shape of ...

In 1923 episode 4, Taylor Sheridan wrote a scene in which the Dutton family ranch foreman, Zane (Brian Geraghty), undergoes dangerous surgery. A doctor determines that he has excess blood ...

How big brains and flexible skulls led to the evolution of modern birds 3D modeling shows how larger brains triggered changes in jaw muscles and joint mechanics that powered a flexible feeding ...

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A dent in the head often looks like a depression or irregular spot in your skull. It doesn't always cause symptoms and may develop over time; for example, cranial sutures (seams) that close up the ...