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 ...

There are about 4,000 different snake species in the world today. They occupy a wide range of habitats — some dwell underground while others live high in the canopies of trees, and many spend their ...