Leviathan. Philip Hoare

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СКАЧАТЬ glistening white membrane, glossy as bridal satins’. From the side and below, this whiteness glows like a half-open fridge; an invitation, and a warning. The huge head is patchy and mottled where the tissue-thin skin is constantly peeling like old paint; it is relatively smooth, but behind, the rest of the body is furrowed and creased like a prune. This mutability gives the animal a metamorphic dimension.

      From a hydrodynamic point of view, the sperm whale looks as though it were designed by an eccentric engineer. There are no concessions in its shape. Its sharp-angled flukes are not those of the sinuous and feminine humpback. It is a blunt blunderbuss of an animal; abrupt, no-nonsense. Its squareness appears to confront the water, to defy, rather than comply with the sea. Yet seen from above, its block-like head is quite narrow, wedge-shaped: this is an animal built to spend most of its life in the depths, so much so that one scientist considers it more apt to call the sperm whale a surfacer rather than a diver. Its very size allows the whale to spend long periods of time in the depths, its body being one huge oxygen tank.

      Slung beneath its signature snout is the sperm whale’s other most formidable feature: its lower jaw, studded with forty or more teeth which fit into its toothless upper mandible like pins in an electrical socket. These ivory canines range in size from hen’s egg to massive foot-long cones too broad for me to encircle in my fingers. Sliced in half, a tooth can reveal its owner’s age by counting the layers of growth like the annular rings in a tree. In the most elderly whales, the teeth are ‘much worn down, but undecayed; nor filled after our artificial fashion’, Ishmael observes, although, in truth, sperm whales often suffer caries. In rare instances, they also possess unerupted upper teeth, relics of ancestors who boasted a full dentition. Natural selection has left their descendants with only a lower row, as if they had misplaced their dentures during the night. That fact makes the sperm whale seem more benign; only half a monster.

      The teeth are yellowy in colour; only when polished do they acquire their bright creamy whiteness, like the little ivory tusks in the carved ebony elephants my grandfather brought back from India after the First World War. Heavy in the hand, they are tactile, smooth, weighty with their benthic provenance. For all their prominence, their function is oddly obscure. One nineteenth-century writer observed that the teeth were marked with oblique scratches, ‘as though made with a coarse rasp’, the result, he thought, of ‘corals, crushed shells, or sand’ and frequent contact with the ocean floor. However, food found in the bellies of sperm whales seldom shows any tooth marks. Juveniles are eating squid and fish long before they develop teeth, and females do not produce any until late in maturity, if at all. Evidently, teeth are not necessary for sustenance. (In some cetaceans they are a positive hindrance: strap-toothed beaked whales, Mesoplodon layardi, have tusks which gradually grow over their jaws, creating a muzzle through which they still manage to feed.)

      In his Natural History of the Sperm Whale, published in 1839, Thomas Beale noted that three hunted whales, one of which was blind, and the other two with deformed jaws, were in otherwise good condition, proving that not only did they not need their teeth to feed, they had no need of eyesight, either. This great predator does not chew its prey; rather, it sucks it in like a giant vacuum cleaner, as the presence of ventral pleats on its throat indicates. Some commentators have proposed that sperm whales use their jaws as giant lures, dangling them like an angler’s rod and baited with bioluminescence from previous meals of squid. Beale believed that the whale hung passively in the water, waiting for its food, while squid ‘actually throng around the mouth and throat’, attracted as much by the ‘peculiar and very strong odour of the sperm whale’ as by the ‘white dazzling appearance’ of its jaw. However, modern science has discovered otherwise.

      Addressing the conundrum of the sperm whale’s head, Ishmael points out to his otherwise ignorant readers that its true shape is in no way reflected by its skull; no one who saw its bones could ever guess that the living animal possessed such a snout. To him, this is further evidence of deception on a massive scale, and in a phrenological diagnosis–all but feeling the whale’s bumps–he declares that the huge forehead which lends the animal a semblance of wisdom ‘is an entire delusion’. But Ishmael was himself misled, for the sperm whale boasts the biggest brain of any creature ever alive, weighing as much as nineteen pounds (as opposed to the human’s seven). Quite what it does with such an organ is another matter.

      Straddling a gallery to itself in New Bedford’s museum is the skeleton of a sperm whale; merely to walk around it is an intimidating experience. The skull alone is more than twenty feet long and stands higher than my shoulders. It is an essentially asymmetrical structure by virtue of its left-leaning blowhole (odontocetes possess single nostrils, whereas mysticetes have two), literally sinister (and I wonder if whales are cack-handed like me). This same quality lends an air of abstract sculpture to the complex construction of caverns and sockets created to accommodate vital vessels and nerves. One opening connects its spinal cord to its brain, another to the ears and eyes, themselves protected by the bony mass from which swings its wishbone jaw, a toothed ‘portcullis’, hanging ‘like a ship’s jib-boom’. I cannot help but agree with Ishmael: this calcium scaffolding can hardly indicate the true shape of the animal. One might tell the form of a human being from its bones, but who could imagine the reality of this creature?

      As in death the enigmatic sperm whale gives few of its secrets away, so in life it sees us from another angle. Its eyes are so positioned as to prevent the animal from seeing straight ahead (although their siting on its wedge-shaped head, at the point where it narrows down to the jaw, is such that a whale can see below itself in stereoscope–presumably a useful tactic in hunting–and will swim upside-down to scrutinize objects above and, perhaps, to feed on them). For most of its life the whale must regard the world in two halves, Ishmael deduces; its head gets in the way, ‘while all between must be profound darkness and nothingness to him’. It seems odd that such a powerful creature should be so benighted. This blindness is also the reason, says Ishmael, for the sperm whale’s ‘timidity and liability to queer frights’. A ‘gallied’ animal would sound deep into the ocean, beyond the reach of man and his harpoons.

      In such a silent flight, the sperm whale could not be outdistanced. More than any other marine mammal, it is a master of the sea. Using its muscle-bound tail, it can power its way thousands of feet below, its paddle-shaped flippers tucked into its flanks as neatly as an aeroplane’s undercarriage. And once below, it can stay down for up to two hours. To achieve this feat, a whale must spend much of its time breathing at the surface–its ‘spoutings out’, as the sailors called them–taking some sixty to seventy breaths in ten or eleven minutes.

      …the Sperm Whale only breathes about one seventh or Sunday of his time.

      The Fountain, Moby-Dick

      Whereas humans inefficiently hold their breath to dive, whales supercharge their oxygen-carrying hæmoglobin blood cells before sounding, often in exactly the same spot at which they surfaced, perhaps to be sure of their survey of the food below. On these stately travels into the deep, they are accompanied by remora, sickly grey attendants suckered to their wrinkled flanks like imps; ‘fish, to be sure, but not quite proper fish’, they are parasites lacking individual motion, dependent on their hosts without whom they would flop to the ocean floor. Even more dæmonic are the lampreys, ‘wriggling, yard-long, slimy brown creatures that repel even the zoologist’. These attach themselves to the whales with rasping mouths, leaving love-bite scars on their huge but helpless victims.

      Commonly, a sperm whale will dive between three hundred and eight hundred metres, following a U-shaped trajectory. Once it has reached its chosen depth, it will swim horizontally for up to three kilometres, presumably foraging. Occasionally, the whale will dive even deeper. Dead sperm whales have been found entangled in underwater cables 1,134 metres down–although that figure does not measure the drowning agony of the whale, its jaw caught in the insulated wire.

      In 1884, a cable-repairing steamship operating off South America pulled up a cable in which a dying whale was trapped, its entrails spilling out; the wire itself was СКАЧАТЬ