Few questions are as difficult to answer as “which came first, the chicken or the egg?” It sounds pretty straightforward, but the answer is always different depending on how you look at things. If you think the egg came first, then what laid the egg? Similarly, if you believe the chicken came first, it had to have hatched from an egg. It’s certainly something to wrap your mind around the next time you go to the grocery store looking for eggs or go to a restaurant and ask for your favorite chicken entree.
Nonetheless, students in Japan have been able to potentially sidestep this question altogether by creating a process for hatching a chicken using nothing but an egg yolk. It sounds like something straight out of science fiction, but it’s the real deal. Typically, the mother hen sits on an egg to ensure it’s at the right temperature. Then 21 days later, a chick is born. With the egg yolk process, chicks are born through the use of an incubator, some cling film, and a plastic container. It only takes a few days for the new chick to form without an egg shell, and you wouldn’t be able to tell that the chicken was born in an incubator when you see it.
The video below shows the different steps that were involved in this new growing process. It’s just one of those things you have to see to believe.
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H/T: Sofa King Sick