Have you ever wondered how tortoises lay eggs? For many temperate species, such as Mediterranean and North American tortoises, eggs typically hatch between late August and early October, though ...

And even some mammals lay eggs. The phenomenon of live-bearing animals seems common to us because of mammals — the most conspicuous animals that are almost exclusively livebearers.

Discover why some chameleons hatch from eggs while others are born alive and how their habitats shape this survival strategy.

Birds may be the most famous egg-layers, but they’re far from the only ones! Across the animal kingdom, reptiles, amphibians, fish, and even a few rare mammals rely on this ancient method of ...

Bald eagles usually lay their eggs three days apart, meaning that a second egg is anticipated for Saturday.

Animals 2 Colorado bald eagle couples lay eggs One couple laid a soon-to-be Leap Day chick, and the other is hoping for a baby after years of bad luck.

Live births are the exception, not the rule, in the animal world. Scientists say more than 99% of animals lay eggs.

Live births are the exception, not the rule, in the animal world. Scientists say more than 99% of animals lay eggs.