With their deadly venom and signature noise-making tails, rattlesnakes are some of the most iconic reptiles around. When rattlesnakes are born, they hatch from eggs, but there's more to the story than that -- the way that a rattlesnake hatches from an egg is different from the way, say, a bird does. But, of course, the rattlesnake would never reach that point if his parents hadn't met and mated in the traditional rattlesnake fashion in the first place -- females generally produce offspring every two to five years.