The more tired you are, the least hard you concentrate.

It was not until 1937 when Southern source of the Nile River was discovered.

Animal researchers have identified many behavioral patterns associated with selection a place to live, avoiding predators, and finding food.

Education and training are an important steps in getting the kind of job that you would like to have.

That man was an easy recognized figure with his long, white beard and a wide – brimmed hat.

Rudolph Nureyev has become one of the greatest dancer that the ballet world has ever known.

Approximately 80 percent of farm income in Utah it is derived from livestock and livestock products.

If you make a five - days trip across the Atlantic Ocean, your ship enters a different time zone every day.