The lobster, like many crustaceans, can cast off a damaging appendage and regenerate a new appendage to nearly normal size.

In the architecture, a capital is the top portion of a column.

The way a child plays with other children reveals a lots about the child's emotional development.

It is proving less costly and more profitably for pharmaceutical companies to market directly to patients.

Ballet performers must be believable actors and actresses as well as experts dancers.

Sheep have been domesticated for over 5,000 years ago.

Alloys of gold and copper have been widely using in various types of coins.

In the sport of fencing, three type of swords are used: the foil, the epee, and the sabre.

During the 1960s the Berkeley campus of the University of California came to national attention as a result of it's radical political activity.

Sapphires weighing as much as two pounds have on occasion mined.