What color is your blood. Red, right? Well, actually, yes. So why does it look blue when you see it through your skin? And is everyone's blood always the same color red (spoiler: no)? Do all animals have red blood ('nother spoiler: no!)? And why is red blood red anyway?
One large egg weighs approximately 2 ounces. Each egg is classified  into medium, large, extra large, and jumbo based on their actual  weight.
Eggs are classified by weight by the dozen. Because of this, there will be slight variations in the weights of eggs in every carton. A dozen extra-large eggs weigh 27 oz. (about 2-1/4 oz. each on average), a dozen large eggs weigh 24 oz. (about 2 ounces each), and a dozen medium eggs weighs 21 oz. (about 1-3/4 oz.