By 1920, the zoo had 5 black bears, 10 monkeys, 19 elk with 19 buffalo, 2 foxes, 1 wolf, and 20 deer, in addition to hundreds of birds.

In 1937, mastodon bones and tusks, which were found in the park, were on display at the zoo causing it to also be known as a museum.

From the 1980s to the present time, the zoo has created new exhibit areas and added additional animals.

Animal additions included two bald eagles named Kenai and Denali, and Chopper the Caiman.

[2] Exhibits shown on the zoo map include North American river otters, great horned owls, llamas and pygmy goats, gray wolves, farmyard animals including ducks, geese and swans, bald eagles, reptiles from over ten different species along with a variety of smaller animals, Indian peafowl, and elk.