In plants, the ability to recognize self from nonself plays an important role in fertilization, because self-fertilization will result in less diverse offspring than fertilization with pollen from another individual.

A leading member of the wide-field camera team captured most of our feelings with a Yogiism: I've never seen anyone muddy the waters so clearly.

But even thriving microfinanciers are tiny by banking business standards.

Yet from the commencement of mining there have been unnoble proprietors of mines, who belonged to the class of merchants.