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Footprints pressed into soft gypsum nearly 23,000 years ago still hold the unmistakable shape of human toes, arches, and heels. For decades, most archaeologists thought humans arrived on the continent ...

SAO PAULO/PARIS (Reuters) -The World Organization for Animal Health has recognized Brazil, the world’s leading beef exporter, as a country free of foot-and-mouth disease without vaccination, a ...

Björn Logi Isfoss (born 1956) PhD, specialist in pathology and senior consultant. He has contributed pathology diagnostics, microscope photography and to the preparation of the manuscript. The author ...