In fact, nitric oxide (not to be confused with nitrous oxide, or laughing gas) is one of our primary signalling molecules.

The American people, as a whole, know what's right; they know what's wrong, and they act on what's right and what's wrong. And in the long run, this equal rights thing will become a part of the custom of the United States as well as the law. No use putting a thing into the law if the people are not for it. And most of the American people, I think the vast majority of them, want to do what's right by whole population.

It is also admitted that these gradations in colour have a protective value; in the case of the melanoderms against the actinic rays of the sun and in that of the leucoderms against cold, since white is the best colour for keeping in the heat of the body.

2015 The “female fertility–social stratification–hypergyny” hypothesis