A strange hill in Sudan resembling pursed human lips has puzzled scientists—discover the mysterious formation seen from space ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Dr. Freedman, whose expertise is related to diseases involving the mouth, including autoimmune processes, presented a lecture on the effects of lupus and oral health. He began by informing the ...