Plants And Animals

Fun Science Fact: Which Came First, The Chicken Or The Egg? It’s The Chicken And Here Is Why

This age-old scientifically and philosophically challenging riddle: "Which came first, the chicken or the egg?" was first unshadowed by researchers at Sheffield and Warwick universities.

This age-old scientifically and philosophically challenging riddle: Which came first, the chicken or the egg? was first unshadowed by researchers at Sheffield and Warwick universities.

According to the researchers, the protein which makes egg shells is only produced by chickens, so the egg can only exist if it has been created inside a chicken. Therefore, it’s the chicken that came first, not the egg.



  1. Pingback: OK, but can science solve the ULTIMATE question: Toilet paperโ€“over or under? – Wag 'n Bietjie
  2. God created chickens the day after He created all the sea creatures that lay eggs and being God no doubt ensured the chickens had eggs in them at creation.

  3. Thank goodness, proof at last of my theory on this. I wondered if the egg came first sometime ago, my reasoning being that eggs come from chickens, so the chicken would have to come fist. Also, if the egg came first, there would be no chickens to incubate the eggs until they hatched. ๐Ÿ™‚

    1. Quoted from Wikipedia: Toilet paper orientation

      The main reasons given by people to explain why they hang their toilet paper a given way are ease of grabbing and habit. Some particular advantages cited for each orientation include:

      1. Over reduces the risk of accidentally brushing the wall or cabinet with one’s knuckles, potentially transferring grime and germs.

      2. Over makes it easier to visually locate and to grasp the loose end.

      3. Over gives hotels, cruise ships, office buildings, public places and homeowners with guest bathrooms the option to fold over the last sheet to show that the room has been cleaned.

      4. Over is generally the intended direction of viewing for the manufacturer’s branding, so patterned toilet paper looks better this way.

      5. Under provides a tidier appearance, in that the loose end can be more hidden from view.

      6. Under reduces the risk that a toddler or a house pet, such as a dog or cat, will completely unroll the toilet paper when batting at the roll.

      7. Under in a recreational vehicle may reduce unrolling during driving.

      Partisans have claimed that each method makes it easier to tear the toilet paper on a perforated sheet boundary, depending on the direction of pulling and the use of a second hand to stabilize the roll. (A traveller from the U.S. to China in 1991 noted a different setup: non-perforated paper with a metal cutter above the roll, which obliges the over direction.)

      It is unclear if one orientation is more economical than the other. The Centralian Advocate attributes a claim that over saves on paper usage to Planet Green. A reader of The Orange County Register found a “six-month study” by a “university in the U.S.” that came to the same conclusion. But a reader of the Cape Argus wrote that a “British loo paper manufacturer” came to the opposite conclusion. In his humor compilation How Hemlines Predict the Economy, Peter FitzSimons writes that placing the hanging flap against the wall “is generally twice as economical”.

      In the academic field of evaluation, Michael Scriven writes that the question of the correct way to insert toilet paper is a “one-item aptitude test” for measuring one’s evaluation skills. These skills include the evaluative attitude, practical logical analysis, empathy, teaching, and being a quick study. To prove one’s competence, one may either derive the “one right answer” or prove that the test is or is not culturally biased.

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