The logical distinction between genus and species can, of course, apply to any objects whatsoever. Thus, for example, the genus knife may be divided into several species, such as penknife, table knife, bread knife, razor, etc. We might define the penknife as a knife small enough to be carried in the pocket, with foldable, sheathable elements, characterized by the feature that one blade at least is always suitable for sharpening pencils and erasing ink spots. We are quite sure in which features all the members of a certain species agree, notwithstanding possible individual characteristics, say a monogram on one penknife, or a corkscrew in another.

Being a purple squirrel is useless if nobody knows it. Branding your unique combination of skills is one of the best ways to ensure you'll be found more frequently.

Blood flushes into the face.

Romanichthys, commonly known as the Romanian darter, is a very primitive cyprinid which has two dorsal fins and a covering of rough scales.