Forget eggs! Many snakes surprise us by giving birth to live young, a clever survival tactic in harsh environments. From the Amazon's boa constrictor to Africa's Gaboon viper, these species protect ...

When we think of mammals, we usually think of animals that give birth to live babies, like lions or humans. But there’s a small and rare group of mammals that do things differently– they lay eggs!

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 ...

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 ...