The image of Rhadamanthus faded, and, fitting in to the prevailing aesthetic, the penguin turned into a large green cone.
The green cone replied: "My learned colleague is mistaken.
These stimulate the red and green cones, and the brain sees "yellow".
Another solid green cone hit him in the eye.
A window shaped like a pool of spilled water looked out upon a row of dark green cones capped in white.
A similar number of green female cones are more robust with a diameter of up to forty centimetres.
It was, essentially, a mobile green cone that looked like nothing so much as a mound of manure.
One minute a person's there, talking to a friend or eating a green ice-cream cone.
The green cone swung sharply around, broadside to the telescope.
There are three different cones: red, green and blue.