PORPOISE • FREE TRANSLATOR.ORG • Definition of Porpoise

... the rounded forehead and projecting muzzle of which its own bullet head and bill exactly correspond. In its plunge, if you watch it bathing, you may see it dip its breast just as much under the water as a porpoise shows its back above. You can only rightly describe the bird by the resemblances, and images of what it seems to have changed from,—then adding the fantastic and beautiful contrast of the unimaginable change. It is an owl that has been trained ...

— Love's Meinie - Three Lectures on Greek and English Birds • John Ruskin