The swamp wallaby’s pregnancy lasts for about 38 days, after which it gives birth to a tiny, hairless, and blind joey that weighs only about one gram.

This marsupial is the only animal that's always pregnant Swamp wallabies have two uteruses, so they can conceive a new baby before birthing another, scientists have discovered.

Swamp wallaby females can spend all of their adult lives in a permanent state of pregnancy, conceiving a new embryo while still carrying a near-term fetus.

The female swamp wallaby, native to eastern Australia, is the only mammal that remains pregnant for the entirety of adulthood, according to a new study.

An ultrasound image of a swamp wallaby fetus at day 29 of gestation, approximately 1 day before birth. By this point of the pregnancy, many females have conceived again, creating a second, much ...

Female kangaroos and wallabies are known to use both of their uteruses, but the swamp wallaby uses both at the same time.

The swamp wallaby is the only mammal that is permanently pregnant throughout its life according to new research about the reproductive habits of marsupials. Unlike humans, kangaroos and wallabies ...

Swamp Wallaby Reproduction Give Tribbles a Run They’re not born pregnant like tribbles, but swamp wallabies routinely get pregnant while pregnant.

It has been suspected for some time that swamp wallabies might conceive during an active pregnancy, because the oestrous cycle of the swamp wallaby is shorter than the duration of their pregnancy ...

The swamp wallaby does not have this constraint, allowing for indefinite pregnancies throughout its reproductive life. Kangaroos and other wallabies also have two uteruses, but they are not used ...

Pregnancy can sometimes feel like it lasts forever, but for an Australian marsupial called a swamp wallaby (Wallabia bicolor), pregnancy truly never ends.