The newborn white whale is about 1.5-1.6 meters long and weighs about 6 kilograms, and the adult beluga whale is 3-5 meters long and weighs about 4-1,5 kilograms. The geographical distribution of beluga whales is along the coasts of Canada, Alaska, Greenland, Norway and Russia around the Arctic and sub-Arctic. Origin (sea area: Canada, Greenland, Russian, Svalbard, jan mayen, USA.
roaming places (sea area: Belgium, Denmark, Faroe Islands, France, Germany, Iceland, Ireland, Japan, Netherlands, Norway, Sweden and Britain.
(Moby dick says to the diver-get out!
In p>212, it was reported that a beluga whale raised by the National Marine Mammal Foundation in San Diego, California, USA, has been imitating human speech for several years, constantly making "human voice" and even repeatedly shouting "Get out!" Let the unsuspecting diver mistakenly think that his colleague is talking to him. Scientists from the National Marine Mammal Foundation of the United States investigated the source of sound in the water with underwater instruments, and finally found that such "human voice" actually came from a beluga whale named Nock. Nock is obviously deliberately imitating human voice, and the reason for doing so is because he wants to communicate with human beings. (Baidu pictures are only for appreciating
the information and pictures of seeking beluga whales. Thank you
for the general introduction of whales:
Whales are giant creatures in the ocean, and they are surrounded by dolphins. (However, they are larger in size than dolphins, with a short mouth, flat-finned forelimbs, degenerated hind limbs, shellfish fins, a wide and flat tail and a blowhole. It belongs to Cetaceans (Toothed Cetaceans and Baleen Cetaceans) and extinct ancient Cetaceans-Baleen Cetaceans and extinct ancient Cetaceans. Generally, whales that can't be attributed are classified into the Dolphinidae of Toothed Cetaceans.
It is widely distributed, and it can be found in almost all the sea areas of the world. It is maritime and takes more group activities in behavior, and rarely acts alone. Like dolphins, they like to have fun when foraging, such as jumping to hit the waves, whale tail lifting, whale tail hitting the waves and floating peep.
species of whales:
whales inhabiting the southern ocean are divided into two categories: baleen whales and toothed whales, with about 12 species. The larger baleen whales are blue whales, fin whales, blackboards, pike whales, giant-armed whales and right whales. The larger toothed whales are sperm whales and killer whales.
The largest whale is the blue whale, and the largest number is the fin whale. Giant-armed whales and right whales are now almost caught and killed, and there are few survivors.
whales are widely distributed in the southern ocean, and almost all of them are found in the south of the Antarctic convergence zone. Their distribution is closely related to the distribution of krill. Blue whales are mainly distributed in the ice floe zone, while giant-arm whales and blackbeard whales live in the southernmost part, and the arm-arm whales can overwinter in Antarctic waters, while right whales are mainly distributed in sub-Antarctic areas; Toothed whales are distributed in the Antarctic convergence zone and migrate with the seasonal changes.
Living habits of whales:
Fin whales are used to living alone, and in the same sea area, males and females coexist. Male fin whales can also use "singing" to attract female fin whales hundreds of kilometers away to mate with male fin whales in food-rich breeding grounds. Because the whale's "singing" frequency is similar to that of some military or commercial sonar, sonar is likely to interfere with the reproduction of fin whales, thus making this species with low reproduction rate even more difficult.
The narwhal has a white abdomen and a black back with blue-gray or black-gray spots. It has a long horn of about 1-2 meters on its head, which is actually a tooth. At present, most people think that the tusk of narwhal is just a sign of secondary sexual characteristics, which is similar to the mane on the head of a male lion on land. (Habit remains to be investigated
Whales were originally thought to be animals that walk on all fours on land, but later they went into the sea because of foraging problems, and most of them were monogamous. For example, "big-winged whales" usually lived alone, while other whales also lived in groups. Their pregnancy period is generally about 12 months, with one fetus and one son. The calf suckles for 1 months and its life span is about 6~7 years.
whales swim back to certain waters in the cold zone and warm generation, and there are fixed swimming routes. After living in the cold zone in summer and supplementing nutrition, they began to move to warm waters in autumn for breeding.
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Whales eat shrimp, squid and fish, while killer whales eat penguins, seals, dolphins and whales, especially whales' tongues. Wild killer whales are violent, but they can be tamed when they are raised from an early age, and they have high IQ and can be used for performances.
There are only a few information and pictures about whales.
You don't need much information.
The cetaceans are characterized by constant body temperature, about 36.℃. The skin is bare, with no body hair, only a few bristles on the snout, and no sweat glands and sebaceous glands. The fat under the skin is very thick, which can keep the body temperature and reduce the specific gravity of the body in water. The skull is developed, but the skull is small, the face is large, and the forehead bone and maxilla are significantly prolonged, forming a long snout. The neck is not obvious, the cervical vertebra is healed, and the head is directly connected with the trunk. The forelimbs are fin-shaped, the toes are not separated, there are no claws, and the joints of elbows and wrists cannot move flexibly, which is suitable for swimming in the water. The hind limbs are degenerated, but there are still remnants of pelvis and femur, showing residual bone fragments. The tail degenerates into a fin, and the skin at the end expands horizontally from left to right, forming a pair of large caudal lobes, which are not supported by bones. The spine gradually tapers in the long and narrow caudal trunk and finally disappears before entering the caudal fin. Unlike fish, the caudal fin can swing up and down and is the main organ of swimming. Some species also have dorsal fins to balance their bodies. Their bones have spongy tissue, and there is more fat in the body cavity, which can increase the volume of the body, reduce the proportion of the body and increase buoyancy. Their eyes are very small, without lacrimal glands and transient membranes, and their eyesight is poor. There is no outer ear shell, and the external auditory canal is very thin, but the hearing is very sensitive, and it can feel ultrasonic waves, and rely on echolocation to find food, contact companions or escape from enemies. There are 1-2 external nostrils, which are located on the top of the head, commonly known as jet holes. Generally, the closer the nostril position is, the higher the evolution degree is. Breathing with the lungs, there is a lung on the left and right, and there are many capillaries in it, which are elastic and can help the circulation of oxygen and adapt to the gas exchange on the water. You need to surface for air exchange every once in a while, and you can also dive for a long time. There are 1 to 2 pairs of ribs. The stomach is divided into four chambers. Most kidneys are tumor-shaped. The male's testicles are located in the abdominal cavity. Female animals give birth and breast-feed in water. The uterus is double-angled, with a pair of breasts, which are located in the cleavage on both sides of the reproductive fissure, and have slender nipples. The milk is rich in calcium, phosphorus and a lot of fat.