House lizards, common in Indian homes, can spread salmonella. Understanding their egg-laying habits is key to control.

For most animals, reproduction is straightforward: Some species lay eggs, while others give birth to live babies. But our recent research uncovered a fascinating mix between the two modes of ...

Charles Foster receives funding from The University of Sydney. Camilla Whittington receives funding from The University of Sydney and the Australian Research Council. Our earliest vertebrate (animals ...

In a world first, researchers at the University of Sydney have observed a normally live-bearing Australian lizard lay three eggs and then weeks later, give birth to a live baby from the same pregnancy ...

Normally, animals reproduce by either laying eggs or giving birth to live young, but an Australian species of lizard can apparently do both in the same pregnancy. Scientists at the University of ...

As a rule, reptiles lay eggs, while mammals deliver young through live birth. According to new research, however, this distinction is a bit more fluid than most assume—for reptiles, at least. Ancient ...

For most of the animal kingdom, babies are born in one of two ways: their parent either lays eggs or gives birth to live offspring. Recently, a three-toed skink (Saiphos equalis) pulled off an ...

In a lab at the University of Sydney, a female yellow-bellied three-toed skink first laid eggs, then gave birth to a live baby, all part of the same pregnancy. This is the first time biologists have ...

Our earliest vertebrate (animals with backbones) ancestors laid eggs, but over millions of years of evolution, some species began to give birth to live young. There is a traditional dichotomy in ...