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Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
Cutaway Drawing of Tholos, The So-called Treasury of Atreus
The drug orlistat prevents some of the fat in foods from being absorbed
A Gaucher cell showing accumulated fat stored in structures called lysosomes