By 1891, the sheep population of Australia was estimated at 100 million.

This is done by finding areas of high rainfall and parishes with high sheep populations.

These were some reasons that their sheep population went from 15,000 in the 1870s to 500,000 in the 1920s.

While the sheep population diminished over time, the pony population grew.

Spain's sheep population remained almost unchanged at about 17 million between 1970 and 1985.

While two million is a lot of animals, it represents only about 2 percent of Australia's sheep population.

New Zealand's sheep population stood at 40.1 million as of June 2006.

With a large sheep population, Achill lamb is a very popular meal on the island too.

While the state's elk population has increased a hundredfold in this century to 800,000, the sheep population barely made it to the 1970's.

In the last 25 years, through intensive management, the state's wild sheep population has roughly tripled, to about 7,600.