Uniformity is an industrial ideal, not something that is regularly found on a farm, and perfection is often the way in which food is presented in grocery stores. But nature has other ideas. If they’re grown organically, there are sometimes spots on apples, eggs that are crinkled, and holes chewed in lettuce.
These are some of the eggs that didn’t make it into the egg cartons that we sell, for no other reason than that they aren’t the size and shape that we, as consumers, associate with eggs. But they are in keeping with nature’s infinite diversity and (trust me) they are still just as tasty. I had no idea that eggs came in different shapes and sizes until I started raising chickens on a larger-than-backyard scale, and a lot of the eggs that grace my table look like this.
Pradaria Farm 
Loved this post. We sometimes get eggs from people with chickens but am always suspicious of them because they don’t look like my grocery store eggs. Great explanation! Nancy Russell