A paper published on March 2, 2020 in the Proceedings of the National Academy of Science, reported that the swamp wallaby, a marsupial related to the kangaroo, is pregnant throughout its adult life.
It typically conceives a new embryo days before delivering the newborn from its previous pregnancy. New research suggests that most adult females are always pregnant.
It is found throughout eastern Australia.
Like all marsupials, swamp wallabies (Wallabia bicolor) give birth to tiny, immature babies that crawl to a special pouch where they nurse on their mother’s milk.
The Wallaby is the only animal, besides the European brown hare, that can become pregnant while already pregnant.
