Snakes are often associated with egg-laying because it is a correct assumption. However, this fact cannot fully describe ...

When we think of snakes, we usually imagine them laying eggs. But not all snakes do that! Some snakes actually give birth to live babies instead of laying eggs. This might sound unusual, but it’s a ...

While many creatures lay eggs or give birth to live young in familiar ways, some have developed unique methods to protect their offspring. One such strategy is mouthbrooding, where parents carry and ...

Researchers from around the world have made a very cool toad-related discovery. They identified three previously unknown species of toads native to Tanzania, East Africa, who have the particularity of ...

Nature is full of evolutionary selflessness. From deep-sea octopuses to certain marsupials, there are animals and insects that reproduce and then die, as their lives can be cut short because they ...

Eggs helped animals conquer land—but most mammals stopped laying them. Why is that? Why do most animals lay eggs, while humans and most mammals give birth to live young? In this episode of Big Ideas ...