You have no doubt heard about roosters and hens, but do you know the difference? When it comes to a rooster vs hen, how can you tell them apart, and what are the primary distinctions that you can make ...
A lone rooster sees a lot of all the hens in the flock, but the hen with the largest comb gets a bigger dose of sperm -- and thus more chicks. Researchers in Sweden have now shown how the size of a ...
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