Wallaby, Tammar


Macropus eugenii


Tammar wallabies are the smallest species of wallaby, reaching only 20-27 inches in length. They are sexually dimorphic, with males growing to be larger than females. Males weigh an average of 20 pounds, while females weigh an average of only 15 pounds. The coat is short and dark grey in color on top with tan below and red on the sides. Like other macropodids, the hind limbs are longer than the forelimbs. The head is small with large ears. Females have a pouch of skin on the abdomen for nursing offspring.

Family

Macropodidae

Order

Diprotodontia

Class

Mammalia

Range

Southern and Southwestern Australia

Habitat

Coastal scrub and leafy dry forest. Open grassy areas are used for feeding and areas of low dense vegetation are used for shelter.

Life Expectancy

Approximately 9 years

Sexual Maturity

Females reach sexually maturity at 9 months, while males become sexually mature much later at two years of age.

Diet

Mostly grasses and leaves

Status

IUCN - Least Concern

Behaviors

Tammar wallabies are a very social species, living in groups of up to 50 individuals. These groups are referred to as “mobs” and are made up of both sexes. Within the groupings, wallabies will mate, socialize and feed. Males typically have a higher ranking within the mobs due to their larger size. Hierarchy among males is determined through aggressive encounters. During these encounters, males will wrestle and display behaviors intended to impress and intimidate the rival. Displays includes upright posture, pushing out the chest and flexing the forearms. These are also used as courting behaviors. Breeding season occurs from January to March. Gestation lasts 25-28 days resulting in a single offspring. The joey will stay in the pouch for the next 8 to 9 months and nurse for 10 to 11 months. Females can start mating again within hours of giving birth. This species utilizes a unique reproductive pattern called embryonic diapause. This occurs when the embryo “pauses” its development until conditions are ideal or until the joey has been weaned from the mother. At this point, development will resume. Major predators to this species include dingos and raptors.

Adaptions

Special Interests

Folklore

Conservation

Jacksonville Zoo History

This species has been a part of the Jacksonville Zoo and Gardens collection since 2015.

Exhibit

Australian Adventure