It makes a loud hissing noise and some of the other subspecies are sexually dimorphic, like most wallaroos.

Through a process called embryonic diapause they are able to get pregnant any time after giving birth, but the embryo does not start to develop until the previous joey is able to leave the pouch of the mother.

[7] Male wallaroos will engage in non-deadly physical combat over mating access to females.

[8] The gestation period lasts around 30 to 38 days, after which the young joey travels into the mother's pouch where it suckles and develops.

After the joey no longer needs its mother for food, it still maintains a close relationship with her.