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 ...

This video captures giant lizards feeding on tortoise eggs in a rarely seen nesting area. The footage shows how exposed nests become prime targets for large reptiles searching for high-energy food.

GAINESVILLE - A black-and-white striped bandit from South America has invaded the habitat of threatened and endangered Florida wildlife, stealing their eggs and potentially causing an environmental ...

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 ...

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 ...

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 ...

Newborn animals big or small, human or reptile, can usually fascinate the curious mind, but a surprising birth brings interest to another level. A Houston-area man was surprised by a new arrival, but ...

1. One of the primary axes of life-history variation involves the proportion of embryonic development for which the offspring is retained within its parent's body; understanding trade-offs associated ...

A woman's unusual discovery has wowed the internet after she shared the story of finding lizard eggs in an old makeup bag. Shared on Saturday by user u/nura_zakir on the popular Reddit forum r/WTF, ...

New findings add a surprising twist to the already complex mechanism that determines whether reptile embryos develop to be males or females. An egg-laying lizard found in the hills of southeastern ...