1. yes
and 2. theoretically yes but doubt it. the chickens would have had to be kept with a rooster to fertilise and the egg would have to have been incubated.
btw blood spots are not a sign of a fertilised egg or a developing chick but come from a blood vessel bursting in the chicken’s reproductive tract during the formation of the egg.
I have had brownish reddish spots in eggs, whether they are blood spots I don't know. But I always scoop them out.
Whenever I see tv cooks breaking an egg straight into cake mixes, I feel sick as I cannot do that and my eggs have to be broken into a bowl first and all spots and eyes removed.
well i've had blood spots quite often from supermarket eggs & remove them
just had a double yolker the other day - love yolk
and i'm sure i've seen what did look like the makings of an embryo in a few eggs but not that often thank god
Doesn't it make you wonder how on earth it was discovered that eggs are good? Someone, somewhere back in the midst of time saw an egg coming out of a chickens bum and thought "Yummm, that looks good"