Fishes have neither organs of hearing, nor yet the exterior orifice. And yet, it is quite certain that they do hear; for it is a well-known fact, that in some fish-ponds they are in the habit of being assembled to be fed by the clapping of the hands. In the fish-ponds, too, that belong to the Emperor, the fish are in the habit of coming, each kind as it bears its name.[3126] So too, it is said, the mullet, the wolf-fish, the salpa, and the chromis, have a very exquisite sense of hearing, and that it is for this reason that they frequent shallow water.
CHAP. 90.—WHICH FISHES HAVE THE FINEST SENSE OF SMELL.
It is quite manifest that fishes have the sense of smell also; for they are not all to be taken with the same bait, and are seen to smell at it before they seize it. Some, too, that are concealed in the bottom of holes, are driven out by the fisherman, by the aid of the smell of salted fish; with this he rubs the entrance of their retreat in the rock, immediately upon which they take to flight from the spot, just as though they had recognized the dead carcases of those of their kind. Then, again, they will rise to the surface at the smell of certain odours, such, for instance as roasted sæpia and polypus; and hence it is that these baits are placed in the osier kipes used for taking fish. They immediately take to flight upon smelling the bilge water in a ship’s hold, and more especially upon scenting the blood of fish.
The polypus cannot possibly be torn away from the rock to which it clings; but upon the herb cunila[3127] being applied, the instant it smells it the fish quits its hold. Purples also are taken by means of fetid substances. And then, too, as to the other kinds of animals, who is there that can feel any doubt? Serpents are driven away by the smell of harts’ horns, and more particularly by that of storax. Ants, too, are killed by the odours of origanum, lime, or sulphur. Gnats are attracted by acids, but not by anything sweet.
(71.) All animals have the sense of touch, those even which have no other sense; for even in the oyster, and, among land animals, in the worm, this sense is found.
CHAP. 91.—DIVERSITIES IN THE FEEDING OF ANIMALS.
I am strongly inclined to believe, too, that the sense of taste exists in all animals; for why else should one seek one kind of food, and another another? And it is in this more especially that is to be seen the wondrous power of Nature, the framer of all things. Some animals seize their prey with their teeth, others, again, with their claws; some tear it to pieces with their hooked beak; others, that have a broad bill, wabble in their food; others, with a sharp nib, work holes into it; others suck at their food; others, again, lick it, others sup it in, others chew it, and others bolt it whole. And no less a diversity is there in the uses they make of their feet, for the purpose of carrying, tearing asunder, holding, squeezing, suspending[3128] their bodies, or incessantly scratching the ground.
CHAP. 92. (72.)—ANIMALS WHICH LIVE ON POISONS.
Roe-bucks and quails[3129] grow fat on poisons, as we have already mentioned, being themselves the most harmless of animals. Serpents will feed on eggs, and the address displayed by the dragon is quite remarkable.—For it will either swallow the egg whole, if its jaws will allow of it, and roll over and over so as to break it within, and then by coughing eject the shells: or else, if it is too young to be able to do so, it will gradually encircle the egg with its coils, and hold it so tight as to break it at the end, just, in fact, as though a piece had been cut out with a knife; then holding the remaining part in its folds, it will suck the contents. In the same manner, too, when it has swallowed a bird whole, it will make a violent effort, and vomit the feathers.