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 ...

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 ...

Reptiles exhibit remarkable reproductive diversity, with many species giving birth to live young rather than laying eggs.

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. For most of the animal kingdom, babies are ...

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 ...

Discovering reptile eggs during a nature walk or in your garden can be a fascinating experience. Although lizard eggs and snake eggs often appear similar, key differences in size, shape, texture, and ...

When a female horned lizard lays her eggs, she finds herself up against several predators that want to devour them. Fortunately, the female horned lizard doesn’t back down very easily, and when she ...

I know I have written time and time again how funny common names of creatures can be. Sometimes these common names can describe where an animal lives, what time of day it is active or even its ...