Remember that claim that ones' environment affected ones' genes? You know, giraffes stretched their necks, etc?

Claimed to be untrue... because it was thought that nothing could affect the germ cells - the sperm & eggs in the ovaries.

Well it has been shown that the state of food availability to ones' ancestors DOES affect the germ cells in their bodies, and this IS passed on, thus some people are FAT & some are THIN due to their ancestors!