TL;DR – Wanna make a guess?
The answer to a decades (perhaps centuries) old question of whether the chicken or egg came first is finally here.
Researchers have finally concluded that the chicken must have came first.
This is because the formation of egg shells is only possible with a protein found only in a hen’s ovaries.
Therefore, an egg can exist only if it has been inside a chicken. The egg shell is essential to house the yolk and its protective fluids while the chick develops inside.
Now you know.
Next question to solve then, why did the chicken cross the road?