The dachshund is a hardy, alert dog with a well sense of smell

Quasars, faint celestial objects resembling stars, are perhaps the most distant objects know.

The importance of environmental stimuli in the development of coordination between sensory input and motor response varies to species to species.

A smile can be observed, described, and reliably identify; it can also be elicited and manipulated under experimental conditions.

A musical genius, John Cage is noted for his highly unconventional ideas, and he respected for his unusual compositions and performances

Chocolate is prepared by a complexity process of cleaning, blending, and roasting cocoa beans, which must be ground and mixed with sugar.

Several million points on the human body registers either cold, heat, pain, or touch.

In the 1800's store owners sold everything from a needle to a plow, trust everyone, and never took inventory.

Although they reflect a strong social conscience, Arthur Miller's stage works are typical more concerned with individuals than with systems.

While highly prized for symbolizing good luck, the four-leaf clover is rarity found in nature.

An involuntary reflex, an yawn is almost impossible to slop once the mouth muscles begin the stretching action.

Elected to serve in the United States House of Representatives in 1968, Shirley Chisholm was known for advocacy the interests of the urban poor.

A mirage is an atmospheric optical illusion in what an observer sees a nonexistent body of water or an image of some object.

Turquoise, which found in microscopic crystals, is opaque with a waxy luster, varying in color from greenish gray to sky blue.