Why are rattlesnakes much smaller than pythons?

Because... rattlesnakes have no particular reason to be larger than they are; they're effective at their current size. A larger size is likely to require more food, too - food which may not be available in areas inhabited by rattlesnakes. read more

The king cobra is the largest venomous snake and it only averages about 4m which is about half the size of the larger constrictors such as some of the pythons (Burmese). 94 Views · View Upvoters Han Tao, I like snakes. read more

For this reason, while they are stunning and small pet snakes, they may not be the best solution for children or beginners. Instead, a more “plodding” snake like a ball python or corn snake might be more easily cared for and handled. Note that due to their small size and speed, milk snakes can be true escape artists. read more