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Y, the

(Encyclopedia) Y, the: see Young Men's Christian Association.

YMCA

(Encyclopedia) YMCA: see Young Men's Christian Association.

YWCA

(Encyclopedia) YWCA: see Young Women's Christian Association.

pixie

(Encyclopedia) pixie, in English folklore, spirit or fairy. The pixie is commonly represented as a mischievous imp who delights in flustering young maidens and leading travelers astray.

San Jose scale

(Encyclopedia) San Jose scale, common name for a scale insect, Aspidiotus perniciosus, introduced from China into San Jose, Calif., c.1870 on nursery stock. The insect has since spread throughout…

killifish

(Encyclopedia) killifish, any of more than a thousand species of small fish of the several families of the order Cyprinodontiformes (toothed minnows or toothed carps), a group that includes also the…

Oscar Hosts

Read a bio on Ellen DeGeneres, the host of the 86th Academy Awards, as well as past Oscar hosts. Do you remember who hosted in 1989? No one. That was the year the Oscars had no…

DK Science: Evolution

When young animals grow up, they may be similar to their parents but they are never identical. If one animal is able to move faster than another of the same species, it can probably catch more…