Not all snakes lay eggs—some give birth to live young, from rattlesnakes to sea snakes, revealing surprising survival strategies and adaptations that help them thrive in harsh or unusual environments.

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 ...

How big they are: Can range from 4 inches (10 centimeters) to over 30 feet (9 meters) There are about 4,000 different snake species in the world today. They occupy a wide range of habitats — some ...

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 ...

Ophidiophobia (the phobia of snakes) is one of the more common phobias psychologists treat today. Some researchers posit that this is an evolutionary response and that humans are wary of snakes ...

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 ...