“And if we turn to the great carnivores, who should surely be the lords of the jungle world, their lot seems to be not one whit more happy. The tiger leads a life of fear; a dirty scrap of rag will turn him from his path. Much of his waking life is prowling hunger; when he kills he eats ravenously, he eats to the pitch of discomfort; he lies up afterwards in reeds or bushes, savage, disinclined to move. The hunter must beat him out, and he comes out sluggishly and reluctantly to die. His paws, too, are strangely tender; a few miles of rock will make them bleed, they gather thorns.... His mouth is so foul that his bite is a poisoned bite....
“All that day I struggled against this persuasion that the utmost happiness of any animal is at best like a transitory smile on a grim and inhuman countenance. I tried to recall some humorous and contented-looking creatures....
“You will have seen pictures and photographs of penguins. They will have conveyed to you the sort of effect I tried to recover. They express a quaint and jolly gravity, an aldermanic contentment. But to me now the mere thought of a penguin raises a vision of distress. I will tell you.... One of my old boys came to me a year or so ago on his return from a South Polar expedition; he told me the true story of these birds. Their lives, he said—he was speaking more particularly of the king penguin—are tormented by a monstrously exaggerated maternal instinct, an instinct shared by both sexes, which is a necessary condition of survival in the crowded rookeries of that frozen environment. And that instinct makes life one long torment for them. There is always a great smashing of eggs there through various causes; there is an excessive mortality among the chicks; they slip down crevasses, they freeze to death and so forth, three-quarters of each year’s brood perish, and without this extravagant passion the species would become extinct. So that every bird is afflicted with a desire and anxiety to brood upon and protect a chick. But each couple produces no more than one egg a year; eggs get broken, they roll away into the water, there is always a shortage, and every penguin that has an egg has to guard it jealously, and each one that has not an egg is impelled to steal or capture one. Some in their distress will mother pebbles or scraps of ice, some fortunate in possession will sit for days without leaving the nest in spite of the gnawings of the intense Antarctic hunger. To leave a nest for a moment is to tempt a robber, and the intensity of the emotions aroused is shown by the fact that they will fight to the death over a stolen egg. You see that these pictures of rookeries of apparently comical birds are really pictures of poor dim-minded creatures worried and strained to the very limit of their powers. That is what their lives have always been....