These ozbozz / or grossman alien birth pods have no scientific reason to be able to give birth to countless babies neither do they have a “gender”. they come complete with one alien inside them, which you can manipulate to allow it to be removed from the “parent” and that is all, you are not able to force a plastic toy to reproduce at will, and produce matter out of nowhere. this video gives a clear outline of the product including its limitations. contact the company directly if you require more information on this topic but once again, these are only toys, and not capable of reproduction via their own means.