Difference between a fertilised and unfertilised chicken egg

This is not a scientific explanation of yolk development into an embryo chick moreover it's a lay observation by me about the size of the membrane coming off the yolk. I sometimes get asked if there's a physical difference between a fertilised and unfertilised chicken egg so I cracked a few of my own and compared them to unfertilised commercial eggs. It seems to me the membrane coming off the yolk is slightly larger in a fertilised egg than in a non-fertilised egg but essentially there's NO physical difference - I try to explain this in the video. More info here https://www.selfsufficientme.com/tips/view/926/is_it_ok_to_eat_fertilised_chicken_eggs_

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Please watch: "5 Fruit Tree & Veggie Patch Questions"
https://www.youtube.com/watch?v=50HgG0yBX80
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