How many babies can a wallaby have

The infant is very tiny, only about the size of a lima bean. The baby, which is little more than a fetus, makes this climb completely unaided and guided only by instinct. Instead, the second baby develops until it is a bundle of around cells and then stops growing.

It just sits there and waits for the tenant in the pouch to vacate. S wamp wallabies are able to have two simultaneous pregnancies at different stages of gestation, indicating a unique method of mammalian reproduction that leaves them able to be pregnant and lactating for their entire reproductive lives, according to a study published Monday March 2 in PNAS. The current study confirms what many had long suspected, that swamp wallabies Wallabia bicolor can be pregnant in both of their uteruses at the same time, conceiving a second embryo days before the first is born.

As Smithsonian Magazine points out, while the European brown hare Lepus europeaus is also able to have overlapping pregnancies, it is confined to a breeding season. 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 simultaneously.

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