The sperm whale is the largest representative of toothed whales: the body length of males reaches 20 meters with a mass of about 60 tons, females - 13 meters and weighs 30 tons. The origin of the species name is probably related to the Portuguese word cachola, which means "big head". It is difficult to argue with this fact, because the square head of the sperm whale is about a third of the length of the whale's body. The square shape of the head is given by a cushion of spermaceti, which can weigh up to 6 tons. There is still no consensus about its purpose: someone claims that the pillow is used for echolocation, others that it plays the role of a swim bladder.

The lower jaw of the sperm whale is much narrower and shorter than the muzzle, but it can open to 90 *, and is strewn with at least two dozen pairs of conical teeth. There are practically no teeth on the upper jaw.
The upper body and sides of the whale are covered with wrinkled skin, the color of which varies from grayish-brown to black-brown (this can be clearly seen in the video below). The dorsal fin is poorly developed and looks more like a hump, the tail is large, the pectoral fins are rounded and wide and short.

This whale belongs to those few animal species that can be found almost anywhere in the oceans, almost the same as. This is largely due to what the sperm whale eats, since its main prey - squid and octopus - are found almost everywhere. Also occasionally, stingrays, small sharks, cod, pollock, and some other marine fish fall into the menu of the sperm whale.

For prey, the sperm whale can dive to a depth of 3 km, which is a record for mammals, and can stay at a depth of up to 2 hours. It is here that he encounters giant octopuses up to 10 meters long, after contact with which large scars remain on the body of the whale.
If the animal is not disturbed by anything, it moves at an average speed of about 13 km/h, while searching for food - 5 km/h, if frightened - up to 30 km/h. Before diving into the abyss, the whale raises its tail fin high (as in the photo above), and dives almost vertically.

The breeding season for sperm whales is mainly in the spring, although mating can take place all year round. Males at this time can completely jump out of the water, and then plunging back with great noise. There are usually 10-15 females per male, which, when an opponent encroaches on the herd, gives him a tough rebuff.

The female carries the cub for about 15 months, after which it is born with a weight of about a ton and a length of 3.5 to 5 meters. Young sperm whales reach sexual maturity by the tenth year of life, and they live in nature up to 50 years.

The sperm whale has only one natural enemy in nature - killer whales, from the attacks of which females with cubs most often suffer.

All people love extremes. After all, it is always interesting to learn about the deepest lake, the highest mountain or the smallest fly. And also, judging by the statistics, queries in search engines, many are interested in: what is the largest whale in the world. The answer to it, of course, is the same - the blue whale, but there are several other animals that are only slightly different in size from it.

The very best whales

Whales are unique animals, which have no equal and have not been in the entire history of our planet. It is hard to believe that they are fairly close relatives of modern terrestrial mammals. They breathe air, bear, give birth and feed their young with milk, are warm-blooded. Once the whales lived on land, but for some reason they did not like it here, and they decided to return to the water.

Over millions of years of evolution, they have lost their outward resemblance to their land relatives. Instead of the front and hind legs, they received flippers, the hair disappeared completely, even the skin glands that produce sweat and fat are a thing of the past. Instead, the whales have grown a thick layer of subcutaneous fat, a blubber, which successfully protects them from the cold of the water.

The shape of their body has become ideal for life under water: spindle-shaped, streamlined. On land, these giants might seem heavy and clumsy, but under water they have no equal in anything, including size.

What is the biggest whale?

There are two types of whales: toothed and baleen. The first includes killer whales, narwhals, beluga whales, dolphins, sperm whales and their other relatives, the second - blue whales, bowhead, southern, humpback and smooth. All of them are quite large, but which of them is the largest whale? And here are the winners:

But now these giants are not in the best position. The largest whales in the world are a desirable prey for whalers who have been actively hunting them for years. And although their catch has been banned or extremely limited for more than half a century, the number of these marine inhabitants is still much less than expected. And if the situation is not corrected in the near future, our grandchildren and great-grandchildren may never see this miracle of nature live.

The sperm whale is the largest toothed whale in the world. The body length of an adult male is about 20 m, weight - 50 tons, females are slightly smaller - 15 m and 20 tons. Because of such an impressive size, the sperm whale's natural enemies are the only ones that attack the young. But since ancient times, the sperm whale has become an object of fishing for humans, spermaceti and ambergris were obtained from it. For this reason, the population began to decline rapidly, and only after the ban on hunting for animals was it possible to restore it a little.

The sperm whale is a giant whale that grows throughout its life. The body length of the male is 18-20 m, weight reaches 40-50 tons. Females are usually half the size, 15 m long and weigh 15 tons.

The sperm whale is characterized by a very large and massive rectangular head. It contains a spermaceti bag, which weighs 6-11 tons. On the lower jaw there are 20-26 pairs of large teeth, each of which has a mass of about 1 kg. Teeth are often missing in the upper jaw. The eyes are big.

After the head, the body of the sperm whale expands and becomes almost round with a gradual smooth transition into the caudal fin. On the back is one fin, similar to a low hump. The pectoral fins are short and wide.

The skin of the sperm whale is covered with wrinkles and folds, thick, with a developed fat layer (up to 50 cm). It is usually painted in a dark gray with a bluish tint, occasionally - in brown, brown or almost black. The back is darker than the belly.

Sperm whales are capable of making three types of sounds - moaning, clicking and creaking. The voice of this mammal is one of the loudest in nature.

According to the way of feeding, the sperm whale is a predator and feeds mainly on cephalopods, as well as fish. Of the cephalopods, the whale prefers squids of various species, and eats octopuses to a lesser extent.

The sperm whale catches its food at depths of 300-400 m, while every day it needs about a ton of cephalopods. The animal sucks in the prey with the help of the tongue as a whole, without chewing, only tears a very large one into pieces.

Interestingly, giant cephalopods often become prey for sperm whales, for example, huge squids with a body length of more than 10 m and giant octopuses.

The habitat of the sperm whale is one of the largest animals in the world. It lives in the vastness of the entire World Ocean, excluding the most northern and southern cold regions, and prefers warmer, tropical waters. Whales live far from the coast, at depths of more than 200 m, where there are many large cephalopods - the basis of their diet. Seasonal migrations are pronounced, especially among males.

For the sperm whale, as the only species, two subspecies are distinguished according to their habitats: the northern sperm whale (Physeter catodon catodon) and the southern sperm whale (Physeter catodon australis). Northern sperm whales are slightly smaller than southern ones.

Sexual dimorphism in sperm whales is clearly manifested in the fact that females are half the size of males. Given the gigantic size of the mammal, such a difference is striking: the maximum body length for males is 20 m, for females - 15 m, the maximum weight is 50 and 15 tons, respectively.

The sperm whale is a herd animal. Only old males live alone. In general, they tend to form groups of animals of similar size, which are convenient to hunt together.

While foraging, the sperm whale swims slowly: up to 10 km/h, its maximum speed is 37 km/h. Almost all the time the sperm whale spends in search of food, he makes a lot of dives, after which he rests on the surface of the water. An excited sperm whale can jump out of the water completely and fall deafeningly, hitting the water with its tail. The sperm whale can also stand upright in the water, sticking its head out. For several hours a day, the sperm whale rests - sleeps, hovering motionless at the surface of the water.

The average life expectancy of sperm whales has not been precisely established and, according to various sources, ranges from 40 to 80 years.

The male sperm whale reaches puberty at the age of 5 years, the female - at 4-5 years. Females give birth to cubs on average once every 3 years and only up to 40 years.

As polygamous animals during the mating season, males create a kind of "harem" when there are 10-15 females next to one male. At the same time, the male becomes very aggressive, skirmishes and fights often occur between relatives. Births occur at any time of the year, most often from July to September.

The duration of pregnancy is 15-18 months. One cub is born, 3-4 m long and weighing 1 ton. He immediately follows his mother, keeping close to her. Milk feeding lasts from 5-6 to 12-13 months. The mammary glands of a female sperm whale simultaneously contain up to 45 liters of milk. After the end of milk feeding, the cub teeth erupt and it passes to an independent adult life.

Cubs and female sperm whales are attacked by killer whales, which can tear them apart or cause serious wounds. But as for the mighty male sperm whale, none of the inhabitants of the oceans can defeat this marine giant.

The natural mortality of sperm whales is associated with myocardial infarction, atherosclerosis, stomach ulcers, helminthic invasions, and bone tissue necrosis. Crustaceans and sticky fish that live on the body and teeth do not harm the sperm whale.

The biggest threat to the sperm whale has become a man. Until the middle of the last century, whaling was extremely popular - in the 50s and 60s, about 30,000 animals were killed every year. This led to a significant decrease in the sperm whale population, after which the animals were taken under protection and allowed to be harvested only in strictly limited quantities.

The popularity of whaling around the world is due to the fact that sperm whales were a valuable source of the following products:

• Fat and blubber rendered from it, which were used as lubricants, for example, for the first steam locomotives, as well as for lighting. Only after a significant distribution of petroleum products did the demand for blubber decrease. But in the 20th century, blubber began to be used as a lubricant for precision instruments and in the manufacture of household and industrial chemicals. From one sperm whale, 12-13 tons of blubber were obtained.
• Spermaceti is a fatty substance from the head of a sperm whale, a liquid that turns into a soft yellowish mass when exposed to air. Spermaceti was used in the manufacture of ointments, lipsticks, candles, as a lubricant, in perfumery. Spermaceti has pronounced wound healing properties.
• Ambergris is a hard gray substance that looks like wax. Used as incense and for making perfumes. It can only be found in the intestines of the male sperm whale. And without whaling, it can rarely be found, washed ashore from the depths of the sea.
• Teeth are a valuable expensive ornamental material, along with mammoth tusks and walrus tusks. They were used for the manufacture of bone products, jewelry and decor items.
• Only sperm whale meat, because of the strong unpleasant odor, people did not use for food. It was ground together with bones into meat and bone meal, used as food for dogs and other living creatures.
• In the 20th century, hormonal preparations for medical use began to be made from the internal organs of sperm whales (pancreas, pituitary gland).

The largest representative of the suborder of toothed whales is, of course, the widespread real sperm whale (Physeter macrocephalus). It belongs to both the Atlantic and the Indian and Pacific oceans, being distributed in all warmer seas, while it is not found in the Arctic and the Arctic Oceans.

sperm whale - a resident of the open sea; he is not only widely dispersed over the seas of his homeland, but on occasion passes from one ocean to another; so, in the Atlantic Ocean, a sperm whale was killed, in whose body there were darts received by him in the Pacific Ocean.

Nevertheless, the sperm whale seems to keep in general a somewhat limited area of ​​distribution, since in the Bay of Bengal and around Ceylon, where it used to be found in great abundance, at the present time, due to strong persecution, it has become comparatively rare. The same can be said about the South Pacific.

Appearance

While the number of sperm whales was not reduced to such an extent as now, by constant persecution, there could be larger specimens of them than at the present time, although there are still sperm whales the size of a bowhead whale. In 1807, one sperm whale was killed, from which a tooth 24 cm long and 23 cm in circumference is currently stored in the British Museum, and weighing 3 1 kg 300 g. Since sperm whales with such teeth are now not caught, then, perhaps , corresponds to the truth of the indication that the sperm whale can reach a length of 24 m.

At present, however, sperm whales are only 17-18 m long, and only males reach this length, while females, which are distinguished, moreover, by a more slender appearance, are much smaller and reach a little more than half the size of males. The length of the pectoral fins in modern sperm whales rarely exceeds 1.8, and the width is 0.9 m, the width of the caudal fin is approximately 4.5 m.

Why were sperm whales killed?

For whale oil

Naturally, the amount of whale oil in present-day sperm whales is not always as large as in adult animals in former times. One very large sperm whale, caught in 1857 near the Galapagos Islands, yielded 85 barrels of fat, while one caught in the same area in 1817 yielded 100 barrels of it.

For spermaceti

In addition to whale oil, the sperm whale also gives the so-called spermaceti, which is contained in large quantities in the head of the animal. The significant size of the head, reaching almost one quarter of the total length of the animal's body, is therefore, together with the number of teeth, which are 20-25 on each half of the lower jaw, the main generic feature of the sperm whale. In the head of the sperm whale there is an extensive cavity filled with spermaceti, the bottom of which is formed by the cranial cover, which forms a high vertical wall in its back part; the snout of the sperm whale, which is very blunt in front, is very high and wide, and thus a cavity is placed in it, in which a large amount of spermaceti can accumulate.

In contrast to the upper part of the head, the long lower jaw, both branches of which merge along the midline at a distance of about half of its total length, is very narrow.

The branches of the lower jaw are armed with teeth bent at the tip backwards, sharp until they are worn out, and consisting of a substance completely similar to ivory. The teeth cover the bottom of a long and wide mouth over a large area, opening at the bottom, somewhat retreating from the end of the muzzle, and passing into a very wide throat. Almost just above the mouth opening, precisely at the very top of the end of the muzzle, not quite in the middle, but somewhat to the left of it, lies the S-shaped common opening of the nostrils; the eye is located slightly above the corner of the mouth, and at some distance behind it is the ear opening, not exceeding 6.5 mm in width.

Not far from the latter, namely, somewhat behind and below the eye, the pectoral fin is attached to the body. The sperm whale does not have a dorsal fin. Instead, at the junction of the head with the body, there is a distinct elevation located along the median line of the back, and in the middle between this elevation and the tail lies a larger outgrowth in the form of a hump, formed by a number of smaller elevations. On the dorsal surface, the sperm whale is painted black or black-brown, its sides and belly are lighter, and its chest is silver-gray.

Sometimes the sperm whale, in old males of which the muzzle and upper part of the head often turn gray, is also found in light piebald or dark piebald specimens. The color of the inside of the oral cavity and tongue is characteristic of the sperm whale, they are dazzling white. Thanks to this circumstance, the sperm whale lures its prey, consisting of cephalopods and fish; he hangs his lower jaw almost vertically down, and the animals serving him as food are attracted by the dazzling whiteness of the oral cavity, and he catches them, quickly closing it.

Breath

The stay of the sperm whale under water for obtaining food is interrupted with such regularity by the breathing of the animal, as is perhaps not the case with any of the other cetaceans. Sperm whales of various sizes, therefore, of different sex and age, differ among themselves in the frequency of breathing and in the length of time spent under water and on its surface.

Large males use for inhalation and exhalation from ten to twelve seconds, remain on the surface of the water for about 12 minutes and make 60-75 inhalations and exhalations during this period of time. When the sperm whale rises to the surface of the water for breathing, first of all its hump appears, then its head slowly emerges from the water, which for about three seconds throws out a column of air saturated with whitish water vapor; this pole can sometimes be seen from the top of the mast at a distance of almost 10 km, but it is not accompanied by any noise.

For inhalation, when the sperm whale moves forward, it needs no more than a second. Even after a very short stay on the surface of the water, he throws out the same large columns of water vapor as in the described case.

Having inhaled, the sperm whale disappears from the surface, head first and raising its tail high into the air almost vertically; in water, it descends to great depths and remains from 50-70 minutes. Frightened animals disappear from the surface of the water suddenly, even if they lie horizontally on the water. If they are not disturbed, then during breathing they often lie on the water, not moving forward. With a calm movement, they swim about 4-6 km / h, and this speed can increase even more if the sperm whale moves from one area of ​​obtaining its food to another. If the sperm whale swims, as is usually the case, into the water level, so that only its hump protrudes, it reaches a speed of up to 14 km / h; if, while swimming, he alternately plunges and raises his head above the water, then he can sometimes swim 20-24 km / h.

The sperm whale is a herd animal

The sperm whale is usually found in herds, in former times numbering from 15 to several hundred individuals. Such herds usually unite males and females of all ages under the leadership of two or three old males. The females take care of the safety of the herd and the cubs; the females also scurry around the killed comrades, which is why after killing the first sperm whale, it is usually possible to kill several more others.

Young males, who at certain times of the year form special herds, on the contrary, leave their wounded comrades to their fate, and old males, of which some, the largest and oldest, have the habit of temporarily living apart, apparently also take care of only themselves.

sperm whale breeding

Female sperm whales, which mate at any time of the year, sometimes throw a couple, usually only one cub, which at birth is 3.3-4.3 m long.

Sperm whales were almost exterminated in the 19th century, when sperm whale fishing paid very well, since the sperm whale is one of the most valuable among cetaceans and its whale oil (blubber) was more expensive than the blubber of other whales. Spermaceti, which, when skinned, could be scooped up in buckets from its head cavity, but which then solidified, played an important role in trade; and besides blubber and spermaceti, as the third product of the body of the sperm whale, the so-called ambergris was also mined, a substance used earlier in medicine, and now only in perfumery; it always contains the remains of cephalopods, therefore it is formed in the intestines; the bulk of it was mined, however, usually not from the sperm whale, but was found floating on the surface of the sea.

In 1980, a ban on the slaughter of sperm whales was introduced and their population is gradually recovering.

Fight for life

During the attack of a whaling ship on a sperm whale, the latter became furious, as a result, very often the ship was drowned by a sperm whale. There is historical evidence of ships sunk by sperm whales. In 1851, a wounded sperm whale, having rushed to one whaling boat and smashed it to smithereens, rushed to another, but his attention was immediately diverted by a third.

The latter barely managed to get away from him, and then he threw himself on the main whaling ship, approaching him in full sail. The ship, however, managed to dodge with a quick turn from the animal, which immediately after this fell in its death throes and could not repeat the attacks. Worse was the other ship.

In 1820, in the South Pacific, one ship was attacked by an angry sperm whale, which, with the first of two well-aimed blows, caused a severe hole in the ship, and the second broke the bow, after which the ship sank. In a similar way, in 1851, a ship perished off the coast of Peru. There is an assumption that many of the disappeared ships owe their death to sperm whales.

Sperm whale movements

After that, he goes some distance under water, so that with the help of powerful, often and quickly following one after another blows of the caudal fin, he acquires such a speed that would allow him to jump out again above the surface of the water.

At the same time, his body immediately upon leaving the water forms almost half a right angle with the water surface, and the caudal fin remains in a horizontal position. When falling down, the body turns slightly so that the animal always falls on its side.

Human danger

In addition to the fact that the sperm whale can sink even a fairly large ship, the sperm whale is also the only one of all animals that can swallow a person whole. And this circumstance was often used in various fairy tales and legends.

In general, the sperm whale animal is quite peaceful, if you do not try to harm him or his offspring.

And here you can read about another amazing inhabitant of the ocean -.

They haven't been getting much attention lately. Much is said about smart, quick-witted and cheerful dolphins, about good-natured giant whales, but for some reason not a word about the noble knights of the seas, sperm whales. Maybe because not everyone has read Henry Melville's amazing novel about the white sperm whale Moby Dick.

Why did he deserve the special attention of the writer? Yes, at least by the fact that the sperm whale, although it belongs to the cetacean family, differs sharply from all the inhabitants of the Earth, both underwater and land. It can rightfully be called the most mysterious animal. It is arranged somehow completely wrong, in any case, it is completely incomprehensible to us.

Whales are not fish, but mammals that must surface to take a breath of air. They only hide under water for a short time and reach shallow depths, and then emerge, otherwise they will suffocate and die. But for the sperm whale, the general rules are not written. He can stay under water for at least an hour and dive to a depth of one kilometer.

Some sources point to the possible ability of the sperm whale to dive even up to 3000 meters. Maybe there are no depth limits for the sperm whale at all? Of course, no whale can even dream of such feats. 25-30 meters - that's the depth of their residence.

The sperm whale descends to very great depths, and there is enormous pressure there - up to 100 atmospheres, it should, like a monstrous press, flatten the sperm whale into a cake, but no! He pops up, alive and well.

Well, if he stays under water for a long time, then he must store a lot of air, which means that the lungs of the sperm whale must be - wow! Nothing happened. They are even two times smaller than those of other whales. What he breathes for so long - no one knows for sure.

It is assumed that his air reserves accumulate in the muscles, as well as in the air sac in the overgrown nostril. All creatures, both large and small, have two nostrils. And only the sperm whale has one, the left one. Once upon a time, however, there was also a right one, but it has long been overgrown.

With air, too, everything is not entirely clear. All divers know the decompression sickness, when nitrogen captured by the lungs along with the air inhaled from the cylinders passes under high pressure into the blood, and from it into the tissues of the body. When quickly rising to the surface, microscopic nitrogen bubbles are released and clog small blood vessels. Severe poisoning occurs, which brings severe suffering, and often death.

The same fate, it seems, should be prepared for the sperm whale, because he is not “from a different test”, and the laws of physics exist for him too. But the sperm whale jumps out of the depths with terrible speed, like a torpedo, and nothing is done to it! How this is possible is one of his mysteries. It is believed that sperm whale blood plasma has an increased ability to dissolve nitrogen, preventing this gas from forming microbubbles.

Yes, and everything else about him is strange and inexplicable, as if it were some kind of alien, and not an earthly animal. For example, he has the longest intestine in the world - 160 meters! And why should he? Completely unknown. This is one of the unanswered mysteries, because predators tend to have much shorter intestines than herbivores.

But this intestine contains ambergris - a substance precious to people, but no one really knows why the sperm whale uses it. According to the most common version now, ambergris is released as a result of irritation of the intestinal mucosa caused by the horny beaks of squids swallowed by sperm whales, in any case, in pieces of ambergris one can always find many undigested cephalopod beaks.

But for many decades, scientists have not been able to establish whether ambergris is a product of normal life or the result of pathology. However, it is noteworthy that ambergris is found only in the intestines of males.

In the huge head of the sperm whale, which is just right to use as a ramming weapon, a white liquid accumulates - spermaceti, which easily heals any wounds (there were even legends about it as a miraculous medicine that cures all diseases). In the first half of the 20th century, spermaceti was used in perfumery and medicine, including for the preparation of anti-burn ointments. Nowadays, natural spermaceti is no longer mined and used.

But why spermaceti sperm whale? Moreover, this is a unique formation in the world of cetaceans, available only in sperm whales. According to one of the latest theories, it helps to give direction to sound waves during echolocation. But this body clearly has other functions. It is sometimes believed that the spermaceti organ can serve for cooling, that is, the removal of part of the heat from the body of the sperm whale.

It is also possible that the spermaceti-filled head is used by whales to absorb impacts. Indeed, male sperm whales in fights with each other during the mating season or when attacking enemies strike primarily with their heads. However, females also have a spermaceti sac, so this issue has not been completely resolved.

Or here's another riddle. In the old days, they told about people who were swallowed by whales, and then miraculously escaped. The Bible tells of the adventures of Saint Jonah, who was swallowed by a huge whale, but he fervently prayed to the Lord, and he saved him.

All these legends do not refer to huge baleen whales - blue and humpback whales, but to old sperm whales, whose weight reaches 50 or even 100 tons. They, indeed, are able to swallow a person whole, which they sometimes do.

At the same time, sperm whales do not injure a person, although with their four-meter lower jaw with huge teeth (the weight of each of these “teeth” is 3 kilograms) they could bite and grind anyone into pieces. Why are they so careful with people?

Maybe they're just saving them when they're in trouble, like dolphins do? But they do it in their own way, the only way available to them.

At least one case of a miraculous rescue is reliably known, in which the whaler James Bartley from the schooner "Star of the East" became a participant. The sperm whale, apparently mistaking the ship and the boat with the sailor for his irreconcilable enemies, squids, attacked them. In the schooner, he made a hole with a blow of his head, and turned the boat over.

The sailor who fell out of the boat was swallowed. The whalers managed to cope with a hole in the side of the ship, after which they harpooned a sperm whale. When his carcass was pulled aboard and his belly opened, they found Bartley there, whom everyone already considered dead. The sailor seemed to be asleep. He was shaken by the shoulder and he woke up.

In general, James was not injured, that's just faded somehow. Either from fear, or the stomach juices of the sperm whale etched all the colors out of it.

However, it was precisely this acquired feature of his that Bartley turned to his advantage. He quit his job on a schooner and began to travel around the fairs, where he showed up for money like a living curiosity: wow, he was in the stomach of a sperm whale and survived! Naturally, on his own behalf, he added a lot of "creepy" details so that onlookers would pay more.

Well, now the most important thing! Why do sperm whales dive to a kilometer depth when they are surrounded by a wide variety of food? The more you think about it, the more inevitably you come to the conclusion that the knight of the seas, as if specially prepared by nature for deadly fights, is looking for a meeting with his old and sworn enemy - a giant squid, in order to fight him and tear apart his slimy body with insidious eyes. -plates.

Yes, but the outcome of the battle, alas, is not always clear. There is a known case when a sperm whale was caught that swallowed such a large squid that its tentacles did not fit in the belly of the whale, but protruded outward and stuck to the snout of the sperm whale. This squid weighed about 200 kg.

Also on the skin of sperm whales, traces of suckers of squid with a diameter of 20 cm are sometimes found. At the same time, even in the largest squid known to science (even those whose length, together with tentacles, reached 10 meters), the diameter of the suckers does not exceed 5 cm. unknown giants meet sperm whales in the mysterious ocean depths?

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