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.

Not only did he have to sit up late at night to do translations himself, he also had to act as a kind of general referee for all the odd translators and translatoresses who were busy on the documents with only one dictionary between them.

Scientists are learning how to manufacture sperm and egg cells from other types of cell; others are developing alternative wombs

It wasn't until the Green Shutters was closed down by the States at the beginning of the First World War […] that the whores went into private business in Cornet Street.