New research shows how physical changes in the skull affected the mechanics of the way birds move and use their beaks to eat and explore their habitats -- adaptations that helped them evolve into ...

Of all the esteemed warriors in Viking history, few reached the renown of Björn Ironside. Like his father, Ragnar Lothbrok, Björn appears frequently in old Viking legends and Scandinavian histories — ...

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Find Breaking Skulls stock video, 4K footage, and other HD footage from iStock. Get higher quality Breaking Skulls content, for less—All of our 4K video clips are the same price as HD. Video Back ...

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 ...