Snakes are ovoviviparous. This means they form an egg, but then hold the egg within themselves.
This is a form of live birth but it's different from the viviparity of mammals in the sense that the egg isn't connected to the mother's body in any way. It's just inside them.
Amazing thing about snakes is that they reproduce spontaneously. They have both male and female sex organs. That’s why somebody you don’t trust you call a snake. How can you trust a guy who can literally go fuck themselves?