A species achieves Vulnerable status when there is a high risk of endangerment in the wild. Hemker Park & Zoo holds the following Vulnerable species.

Reticulated Giraffe

The giraffe is the tallest animal in the world. Males reach a towering 19 feet tall and weigh between 2400 and 4250 pounds. Females measure up to 17 feet tall and weigh between 1540 and 2600 pounds. A lot of this height and weight is because of the giraffe's incredibly long neck, which can be 8 feet in length and can weigh almost 500 pounds. Even though the giraffe's neck is taller than most humans are, it is still made of only 7 bones. This is the same number of bones that are in the human neck. On the top of their heads, giraffes have horns made of solid bone and covered with skin.


Macaws are long-tailed, often colourful New World parrots. Macaws are native to Central America (especially Mexico), South America, and formerly the Caribbean.

Most species are associated with forests, especially rainforests, but others prefer woodland or savannah-like habitats.

Proportionately larger beaks, long tails, and relatively bare, light-coloured, medial (facial patch) areas distinguish macaws.

Spider Monkey

Spider monkeys are New World monkeys found in tropical forests of Central and South America, from southern Mexico to Brazil. The genus contains seven species, all of which are under threat; the black-headed spider monkey, and brown spider monkey are critically endangered.

Disproportionately long limbs and long prehensile tails make them one of the largest New World monkeys and gives rise to their common name.

New Guinea Singing Dog

The New Guinea singing dog is a wild dog once found throughout New Guinea.

New Guinea singing dogs are named for their unique vocalization.

Little is known about New Guinea singing dogs in their native habitat. There are only two confirmed photographs of wild singing dogs.

New Guinea singing dogs are named for their distinctive and melodious howl, which is characterized by a sharp increase in pitch at the start and very high frequencies at the end.

Leopard Tortoise

The Leopard tortoise is a large and attractively marked tortoise found in the savannas of eastern and southern Africa, from Sudan to the southern Cape.

This is a grazing species of tortoise that favors semi-arid, thorny to grassland habitats, although some leopard tortoises have been found in rainier areas. In both very hot and very cold weather they may dwell in abandoned fox, jackal, or anteater holes.

Leopard tortoises do not dig other than to make nests in which to lay eggs.

African Spurred Tortoise

The African spurred tortoise is a species of tortoise which inhabits the southern edge of the Sahara desert, in northern Africa.

It is the third-largest species of tortoise in the world and the largest species of mainland tortoise not found on an island.

Adults are usually 24 to 36 in long and can weigh 100-200 lbs. They grow from hatchling size (2-3 in) very quickly, reaching 6-10 in within the first few years of their lives. The lifespan of an African spurred tortoise is about 50-150 years, though they can live much longer.