Eggsitement, The Yolks with us

After getting a batch of double yolk eggs in the one carton, ( At least four from a carton of twelve) I looked on the internet and found lots of stories on double yolk eggs. .


Here's only one story. posted from a website.
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Double-yolk eggs occur when ovulation occurs too rapidly, or when one yolk becomes joined with another yolk. These eggs may be the result of a young hen's reproductive cycle not yet being synchronized. Some hybrid breeds of hens also produce double-yolk eggs by default. Such eggs are produced in India. Eastern states known for that are West Bengal and Andhra Pradesh.
Some hens will rarely lay double-yolked eggs as the result of unsynchronized production cycles. Although  heredity causes some hens to have a higher propensity to lay double-yolked eggs, these occur more frequently as occasional abnormalities in young hens beginning to lay. Usually, a double-yolked egg will be longer and thinner than an ordinary single-yolk egg. Double-yolked eggs usually lead to observed successful hatchlings only under human intervention, as the chickens interfere with each other's hatching process and die.
Rarely, higher-order yolks occur, although heavier poultry breeds such as the Buff Orpington have been known to lay triple-yolk eggs in their lifetimes.