Dave's World often leaves us baffled, but one of today's facts was the most puzzling yet. 

"At twenty weeks, the female fetus has developed all the eggs it will ever carry" is how it started, and what followed left us (well me and Seán anyway) like...

The trivia king also educates on how the name 'Wendy' became popular and teaches us that there's no such things as a spiral staircase. 

Check out the fun in full by pressing the play button in the image at the top of the page.