Retained sperm ?? and Breeding

[jluman]

Sperm is Sperm it can only stay active or fertile for so long. just as in humans, if not taking proper care like sperm banks do then they die off.

so for a ball python to hold onto sperm for months and then get pregnant is by far a myth

Not true. Another breeder near me bred a bumble bee to a female in '07 and she produced a clutch with bees, spiders, pastels as expected. In '08 he bred the same female to only a male lesser, and she produced a clutch with a spider, some bees and no lessers. I've heard other stories like this as well, sperm retention from year to year is definitly a possibility in ball pythons.