Eggs in America must be refrigerated and are sold in the cold section of the stores.

I've seen Finnish food-safety officials say that it doesn't matter much if they're in the fridge or not, but their temperature shouldn't change too variably too often or something. So fridge door maybe not the best location.

In Germany there is a printed date after which refrigating is recommended.

Cold temperatures lower metabolic activity.

.ɯǝɥʇ lɐǝʇs oʇ ǝpᴉsuᴉ ǝɯoɔ oʇ ǝɟᴉlplᴉʍ ǝɥʇ ʇuɐʍ ʇ'uop ǝʍ ǝsnɐɔǝq