Stellar's sea cow was a large marine mammal that was found in abundance in the North Pacific. These huge animals were closely related to Dugong and Maneet was still grazing in the oceans, but in length there was a size between eight to nine meters.
The first time the explorers of Stellar's Sea Cow entered parts of Arctic Circle in 1741. When they were first recorded, Stellar's sea cow has been living in abundance in the North Pacific for at least 20 years of human contact, but it was said that Stellar's sea cows completely disappeared from the sea. .
Stellar's marine cows had large herbs that had a seal with a tail that looked like a whale. The animal which was discovered and named after Stellar's sea cow named George Stellar: "The animal never comes out on the shore, but always lives in water, its skin is black and thick, an old oak, Like the bark, in proportion to your body, the head is small, there is no tooth in it, but above there are only two flat white bones, the other down ".
Stellar's sea cow was considered to be an animal that spends most of its time with its entry on the cage, which probably makes it so weak later. However, due to Stellar's sea cow being unable to completely dip under his huge body, an easy place for human hunter was made.
Stellar's sea cow was a herbaceous animal that still had a very similar diet for dugong and manatees. This toothless animal has grazed most of its time on the shallow-growing canals, seaweed and other aquatic grasses of the oceans.
Prior to being discovered by humans, there were very few predators in Stellar's sea cow's water world. The big shark species were the only hunters capable of dealing with the only predators, but no one was successful in hunting this huge sea cow than humans, who had wiped out entire species in just 17 years.
Stellar's marine cow must have sexual intercourse and would have given birth to its calf in water (because these marine mammals do not go to the ground). As soon as it is a small cousin, female staller's sea cow has given birth to a calf after a pregnancy period which may have been going on for more than a year. The sea cow-calf will remain with its mother until it is strong enough to become independent.
Sadly, these remarkable legends of the sea, where soon after being discovered by the searchers, were wiped by human hunters. Today, these small cousins are in serious danger from their native residents of high prevalence and pollution levels in the water.
Research history
In the middle of the 18th century (1741), Stellar's sea cow was discovered by George Wilhelm Stellar and his name was named after him. Stellar discovered the wildlife of Bearing Island, while he left the ship for nearly a year there; Animals on the island included mention of the population of sea cows, sea otters, Steller sea lions, and northern the short, fine, soft hair of certain animals seals. Stellar's account was included in his posthumous De Best is Marinis, or The Beasts of the Sea, published in 1751 by the Russian Academy of Sciences in St. Petersburg. Zoologist Eberhard von Zimmerman formally described stellar marine cow as Manati Giga in 1780. In 1794, biologist Anders, where Ratzius placed sea cow in the new genus Hydrodamalis, in honour of Stellar, with the special name of Stellar. In 1811, naturalist Johann Karl Wilhelm Eliger re-classified Styler's sea cow in the Reitinagenus, which had adopted many writers. Hydrodamalis Giga name, correct combination Nova If a different genus is identified, then Theodore was first used by Sherman Palmer in 1895.
An example of a dead staller's sea cow on a beach, in which three men crush it
The rebuilding of Stenger's measurement of a sea cow in 1742 in 1742
After decades of discovering, skeletal remains of Stellar's marine cow was not discovered. [10] It could be due to the rising and falling of sea level during the Quaternary period, which many sea cows could hide bones. The first bones of Stellar's sea cow were discovered in approximately 1840 after 70 years of extinction. The discovery of the first partial sea cow skull was done by Ilya Wojnenskski on Commander Arch in 1844, and the first skeleton was discovered in 1855 on Northern Bearing Island. These samples were sent to St. Petersburg in 1857, and around 1860 there was another almost complete skeleton in Moscow. Recently, all the complete skeletons were found during the 19th century, the most productive period in 1883, in the case of countless skeletal remains since 1878. During this time, 12 collections of 22 skeletal dates were discovered. Some authors did not consider recovery of significant skeletal material ahead of Commander Islands after this period, but a skeleton was found in 1983, and two zoologists collected about 90 bones in 1991. [10] Only two to four skeletons from a sea cow display in different museums of the world emerge from one person. It is known that Adolf Eric Nordenschild, Benedict DiBowski, and Leonhard Haas Stageenager discovered many skeletal remains from various individuals in the late 1800s, of which the entire skeleton was assembled. As of 2006, 27 full skeletons and 62 full skulls have been found, but most of them are bony combinations from two to 16 different individuals.
At present, the ocean bones are found regularly on the Commander Archipelago, but it is a very rare event to find the entire skeleton of Stellar's sea cow. However, in November 2017, during the regular surveillance of coastal island Marina Shitova, researcher of the Commander Island Nature and Biosphere Reserve, this animal received a new skeleton. The skeleton was at a depth of 70 centimetres and contained 45 spine bones, 27 ribs, left shoulder blades, shoulders and precursor bones and several wrist bones. There was a scalp, cervical spine, 1-2 dorsal vertebrae, several caudal vertebrae, pectoral, metacarpus and the right part of the fall bones of the left limb. The total length of the skeleton was 5.2 meters (17 feet). Considering the length and head of the absent portion of the spinal cord in the account, it was believed that the animal was about 6 meters (20 feet) long. The last full an internal or external framework of the bone of this animal (approximately 3 meters, 9.8 feet long) was having been discovered by chance or unexpectedly on Bearing Island in 1987 and is now in the Aleutian Museum of Natural History in Nicolo.