Male and female characteristics of each species could be distinguished by pairs of sex chromosomes.
http://www.people.virginia.edu/~rjh9u/sexdet.html and http://en.wikipedia.org/wiki/XY_sex-determination_system
As a seafood enthusiast, it is difficult to understand why the female blue crabs of the Atlantic and Gulf coasts are much more palatable than the male. As for the taste of chicken it is the preferred Cornish hen not Cornish roaster. For deer hunters, it is the doe meat that they are after although they also hunt buck as trophy for the mantle pieces. However, if x could smell y now, when it comes to olfactory senses as in perfume products, it is dominated by the males of the species. http://en.wikipedia.org/wiki/Perfume#Animal_source


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