Quote:
ahoba wrote
You said that 'hens who sit on their eggs tend to hatch a lot more eggs'
How they know that the eggs need incubation to hatch and before how they know that eggs will hach?
Regards,
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How much do you know about evolution, natural selection etc?
I doubt that the hens "know" that an eggs needs incubation. It's likely an instinct that some were born with to cover their eggs for protection etc. This had the bonus effect of incubating the eggs, and so the eggs that were inclined to hatch quicker/better when insulated did so in a more efficient manner, meaning that more chickens were born with those traits. Because there were more of them born than chickens without those traits, they eventually came to be common in the species.