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Wood first appeared in plants called progymnosperms.
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
حلاوة الجبن الحمصية Arabic sweet with cheese