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Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
People whose behaviors violate norms are often called mentally ill. “Why else would they do such ...
The illusory bands visible in this figure are often called Mach bands, although Mach used a ...
Cancer cells can move to new locations in the body, a process called metastasis