 One of the most mind-boggling questions of our time is which came first, the chicken or the egg? In science and engineering, this situation is known as circular reference. That means one must know something to calculate the same something. So today, let's solve this chicken-egg paradox with some scientific arguments. Chickens came about from non-chickens through small changes in their DNA. The changes in the DNA came about in the cells they were housed inside the egg. So by this logic, eggs should have come first. However, in 2010, a group of British scientists using supercomputers claimed to have come to the final conclusion of this paradox. They identified a protein called ovocladene 17. This protein is needed to create eggshells. So this protein is present only within the chicken. So that settles it once and for all. So the chicken came first. By the way, that's my answer too.