Man Cracks Open A Giant Egg, Something SO Unexpected Falls Out

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People find strange things in food all the time, but this might be one of the more eggs-traordinary discoveries.
In a scene that seems staged, a man opens a carton of eggs on his kitchen counter. He holds an especially large one up to the camera, and then cracks it open to reveal something bizarre: both a normal-looking yolk and a regular-size egg, with its shell fully intact. The two-minute demo has gone viral and spurred speculation that its a setup.

The big egg has another egg in it!
That surprised reaction by a man when he cracked open an oversized egg from one of his hens has garnered plenty of skepticism. Whether the video is real or fake is uncertain, but the possibility of it happening is definitely plausible.
While extremely rare, a hen can lay an egg within an egg: It is caused by a counter-peristalsis contraction. This happens when an egg is forming in the hens oviduct and another oocyte is released too soon, causing a contraction that pushes the first egg back up.

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Typically, a hen releases an oocyte (the egg cell that becomes the yolk) from her left ovary every 16 to 26 hours, according to Backyard Poultry Magazine. The oocyte then travels through the oviduct, where layers of membranes and albumen are added along the way.
However, if a second oocyte is released too early, the first oocyte (now in the hens uterus) gets sucked back inside by a contraction induced by the second egg. The counter-peristalsis contraction pushes it backwards to where it gets embedded inside egg number two.
To see that tiny egg inside a bigger is really rare, said Gregoy Bedecarrats, an associate professor in animal and poultry science at the University of Guelph, to BuzzFeed. Ive never seen it personally, but it is possible.

 

Source:

iflscience.com

 

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