(Encyclopedia) hornbeam or ironwood, name in North America for two groups of trees of the family Betulaceae (birch family), native to the eastern half of the continent. Carpinus caroliniana, also…
(Encyclopedia) waxwing, any of three species of perching songbirds of the Northern Hemisphere. Waxwings have crests (raised only in alarm) and sleek brownish-gray plumage with flecks of red pigment…
(Encyclopedia) Bichon FriseBichon FrisebēshôNˈ frēs [key], breed of small dog developed in France after World War I. It stands from 8 to 12 in. (20–30 cm) high at the shoulder and has a profuse,…
(Encyclopedia) boat-billed heron or boatbill, a tropical New World heron, Chochlearius chochlearius. With shorter legs and a squatter appearance than most herons, this bird is remarkable chiefly for…
(Encyclopedia) Tibetan terrier, breed of medium-sized dog originating in Tibet probably several thousand years ago. It stands from 14 to 16 in. (35.6–40.6 cm) high at the shoulder and weighs from 15…
(Encyclopedia) stoneware, hard pottery made from siliceous paste, fired at high temperature to vitrify (make glassy) the body. Stoneware is heavier and more opaque than porcelain and differs from…
Gyri and SulciAnatomy and PhysiologyThe Central and Peripheral Nervous SystemsYou've Got Some Nerve!Gyri and SulciThe Control CenterSensory and Motor ControlThalamus: The Switching StationSpinal…
Natural-Selection MechanismsHistorical Development and Mechanisms of Evolution and Natural SelectionIntroductionEarly Theories of EvolutionNatural Selection and EvolutionNatural-Selection Mechanisms…
