(Encyclopedia) hyperactivity, excessive physical activity of emotional or physiological origin, usually seen in young children; one of the components of attention deficit hyperactivity disorder.
(Encyclopedia) mammal, an animal of the highest class of vertebrates, the Mammalia. The female has mammary glands, which secrete milk for the nourishment of the young after birth. In the majority of…
(Encyclopedia) nest, structure for the reception and incubation of the eggs of birds, reptiles, insects, and some fish or for the parturition of mammals, and also for the care of the young during…
(Encyclopedia) Henty, George Alfred, 1832–1902, English author. Initially a war correspondent, he later wrote boys' adventure tales that were very popular. Henty's books all focused on an ideal of…
(Encyclopedia) Badger, Joseph, 1708–65, American painter, b. Charlestown, Mass. By trade a glazier and house and sign painter, he turned his hand to portraiture. Generally uninspired, his work…
young-adult novelistBorn: May 15, 1931Died: October 17, 2009 (Vermont, USA) Best Known as: Young-adult novelist Norma Fox Mazer was best known has a young-adult…
(Encyclopedia) Merck, Johann HeinrichMerck, Johann Heinrichyōˈhän hīnˈrĭkh mĕrk [key], 1741–91, German critic. He was the counselor of many young writers, including Goethe, whose genius he was first…
