Later, it came to be used primarily in reference to aristocratic or royal animal collections.

By the 20th anniversary of the Zoo, its animal collection had doubled in size.

The animal collection attracted great interest when the farm opened to visitors in 1908.

The animal collection was opened to the public in 1975.

But up until this time period no known animal collections existed in North America.

The animal collection was small and but it had many species that were not common in zoos.

Over time the animal collection increased and the zoo expanded.

It has grown out to be the biggest animal collection in the country.

So many, in fact, that by the time he was 18 his animal collection had outgrown his parents' home.

That done, he turned his attention over the past five years to the museum's rich animal collection.