[4] In general, the agile wallaby is a solitary animal, but it sometimes forms into groups when feeding on open pastures, a behaviour that may help with predator awareness.

The agile wallaby feeds mainly at night on grasses, legumes, and other herbaceous plants, but may also forage by day, especially in the wet season.

In the dry season, the animal's range grows larger as the quality of the grazing deteriorates, and the diet expands to include flowers, fruit, twigs, fallen leaves, roots, and bark.

[5] In the dry season in Boodjamulla National Park in Queensland, when food is in short supply, it has been observed pulling up seedling Livistona palms with its teeth, eating the roots and stems, and discarding the leaves.

[4] It sometimes digs holes in dry creeks and billabongs to search for water, and this is thought to help it avoid being killed by the saltwater crocodile (Crocodylus porosus) that can be found beside rivers.

After a brief courtship, mating takes place after which an embryonic diapause occurs, in which the embryo remains in a state of dormancy before implanting.

[2] In Western Province, Papua New Guinea, agile wallabies are hunted by local indigenous peoples using fire drives.