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 ...

Being a mother is a tremendous accomplishment and one of the most challenging jobs in the world. This applies even in the ...

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 ...

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

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. 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. 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 ...

It lays the world’s largest egg, weighing about 1.5 kg and measuring up to 15 cm in length — truly a giant among birds. Emus lay striking dark green or blue-green eggs, reaching up to 15 cm in length ...