Why did our ancestors ditch the shell and start growing babies inside their bodies instead? In this episode of Big Ideas, ...

Platypuses are weird looking. They look like someone stitched together a duck and a beaver—flat bill, webbed feet, and a ...

Q. When we studied high school biology, our teacher said more than 99% of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

Q. When we studied high school biology, our teacher said more than 99 percent of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

Even within the world of egg-laying animals, there is an incredible variety of reproductive strategies. Some species mate before the female lays her eggs, ensuring they are fertilized internally, ...

So, you've spotted some unfamiliar eggs in your garden. What next? Here are some tips for identifying common animal eggs and what to do when you find them.

Chameleons are extremely fascinating creatures. One interesting fact is the two different ways they give birth. Read here to learn more.

Eggs are one of nature’s most fascinating creations. They come in many sizes, shapes, and colours. There are a variety of eggs ranging from the tiny specks to the giant, hard-shelled eggs. An egg is ...

Most people assume that only reptiles, fish, and birds lay eggs — after all, that’s what we learned in school. But nature always has a few surprises up its sleeve. Believe it or not, there are ...

We often assume every baby animal grows up with its mother nearby. In reality, that is not always how nature works.