Honestly I use the word "defect" less and less these days because I think it's more accurate to refer to these as natural variations. "Defect" assumes things are supposed to be a certain way, but biology doesn't have any direction, it just keeps exploring what is possible in every which way it can, and natural selection filters out some variations. Some variations really are upgrades.
Edit: I'm not saying all variations are helpful! Most aren't.
I read the article, it has trouble shitting because the leg is where the butt should be and had to be moved to a personal place because the hind legs could be mistaken for worms causing other chicks to attack it.
I'm not saying this variation is an upgrade. I'm also not saying most variations aren't helpful. I'm just saying that life does what it does without any underlying direction or purpose.
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u/Ill-Agent7195 29d ago
Defect? You mean 4x4 upgrade?