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 ...

Snakes, like most reptiles in the world, are oviparous. This means that rather than producing live young ones, the way mammals do, snakes produce an immature single cell — an egg. Most snakes follow ...

Nature is full of wonders, and some of the most amazing surprises come from how animals reproduce. While most of us think ...

Domestic pets are animals that people keep in their homes as companions. Farm animals are animals that people keep for their ...

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 ...

Octopuses living in the deep sea off the coast of California are breeding far faster than expected. The animals lay their eggs near geothermal springs, and the warmer water speeds up embryonic ...

One of the world’s most famous birds has returned to her nesting site. Wisdom, the 75-year-old albatross is known as the world’s oldest breeding bird. Earlier this month, she returned to Midway Atoll ...

One day I saw a collection of eggs from lots of different bird species, and I realized just how many different kind of egg shapes there really are! Here’s what science says about why eggs are ...

Q. I am doing a project on different types of eggs in the animal kingdom. Can you tell me the approximate percentage of animals that lay eggs? I know mammals do not and birds do. What about other ...

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 ...