Prefer Newsweek on Google to see more of our trusted coverage when you search. For most animals, reproduction is straightforward: Some species lay eggs, while others give birth to live babies. But our ...

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 ...

A lizard that both lays eggs and gives birth to live young is helping scientists understand how and why these forms of reproduction evolved. The old riddle, “Which came first, the chicken or the egg?” ...

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 ...

The common image of a snake coiled around a cluster of eggs is only partly accurate. While egg-laying is widespread among snakes, it’s not the rule for every species. A significant number of snakes ...

Over the last year, wildlife topics have become very popular online. People are especially curious about snakes, mainly because many snake facts go against what most of us grew up thinking. One of the ...