10 - 20 kg
swamps, forests and open grassland
No Bigger than a Jelly Baby
About a month after fertilisation takes place the baby - at this point as small as a jelly baby and not even weighing one gram - climbs into its mother’s pouch unaided. Naked, deaf and blind it clings to a teat until it leaves its mother’s pouch for good eight months later.
Births in Quick Succession
A swamp wallaby mother can have three babies at different stages of development - a young animal that’s able to hop around independently, a baby in its pouch and an embryo on standby.
Whilst there is a baby in the pouch for about eight months, the second embryo in the womb doesn’t develop further. Only when the baby has left the pouch and there is a teat free again, does the fertilised egg grow. This way the swamp wallaby ensures a quick succession of births.
Swamp wallabies eat leaves, grasses and bark, but also a species of fern that is highly toxic for other animals.