Scientists have concluded that many species of plants, animals, birds and insects are disappearing from the face of the planet in 1000 times faster than the natural rate. This means that we are losing 10 to 130 species every day. This list will certainly poorly impress you!
Nature is so smart, and that took care of evolution and progress. It has long been known that stagnation to anything good does not lead when we say about the animal and plant world. Nature is the most talented engineer breeder and geneticist. Thanks to evolution, species of living organisms are constantly changing: there are new, more adapted species, and die old.
It’s truth… Specifically, this would be truth if a person did not harm the nature. Due to human activities, a natural extinction accelerated in 100 times. Perhaps even a thousand times. Many species of animals and plants have already disappeared and this process continued. The list of extinct animals is constantly replenished. Each species of living organisms are constantly exposed to various environmental factors that act collectively and specifically. So they have different impact on the state of individual species and plants
We propose to familiarize with an extinct animal list in West Africa and Nigeria.
West African Black Rhinoceros
In West Africa no longer remain black rhinos, according to a recent global assessment of species threatened with extinction.
West African Black Rhinoceros (Diceros bicornis) is representative of the rhinos living in the territory of the African continent (West Africa). The black rhino is relatively large animal in size but it inferior to the white rhinos. The black rhino had a length of up to 3.15 m, and height is 150-160 cm, weight up to 2 tons. He usually had two horns, and although had 3, and even he had five horns. Horn of rhinoceros at the intersection at the base was roundish. Anterior horn size up was to 40-60 cm, sometimes more. The case is known where a female black rhino "Gert" had anterior horn length 138 cm.
The peculiarity of the black rhino is his upper lip. The top lip is sharp and hanging like a proboscis over the lower lip. The animal deftly grabs the branches of shrubs using this upper lip. Black Rhinos have poor eyesight. You can approach it to a distance of 40-50 meters, and it cannot distinguish a man from a tree trunk. Much better in these animals developed hearing and especially smell.
Black rhino likes to take a bath with mud. Here it could spend a lot of time. These animals may adopt to watering-place to 8-10 km. Black rhinos diet has only young shoots of shrubs usually morning and evening, and hot days spends in a dream, standing in the shade of trees. These animals sleep at night for 8-9 hours. Black rhinos live up to 35 years.
Some people believe that West African Black Rhinoceros horns have medicinal properties, although this has not been proven by scientists. This led to massive poaching. The International Union for Conservation of Nature declared Africa's Western Black Rhino officially extinct in November 2011. Rhinos are killed for their horns, believed in traditional Chinese medicine to cure fevers. Subspecies black rhino was the victim of poaching even after it was placed under protection in 1930. Rhino horn is in high demand in Yemen and China. The last representative of this subspecies of rhinos killed in Cameroon in 2006.
Red List compiled by the International Union for Conservation of Nature (IUCN), has become the undisputed evidence that subspecies of these animals no longer exists.
Giraffe Sivatherium, extinct about ten thousand years ago, was the largest ruminant animals ever to inhabit the Earth. This conclusion voiced by British paleontologists who reconstruct the volume and weight Sivatherium giganteum. Sivatherium is a genus of fossil mammals of the family Giraffidae. Name of Sivatherium comes from the name of the god Shiva. Sivatheriums were distributed in the Pliocene to the Late Pleistocene in areas from Africa to Asia (especially in India).
Describing the creature's skull in 1836, scientists have suggested that the size of this animal was like an elephant. However, modern paleontologists substantially corrected this estimate: Sivatherium was a smaller elephant. Researchers have built a computer model of the mammal bones, sometimes changing their scale. Then they added into the design the pelvic bones and ribs of modern giraffes on a larger scale.
Then the scientists calculated the amount of meat on these bones, and biologists have found that the body weight Sivatherium was about 1246 kilograms. It is about a fifth of the weight of an African elephant. However, Sivatherium doesn't lose the status of a large animal. Moreover, scientists called it the greatest ruminant among all who ever lived on the planet (it is, for example, about five per cent heavier than the modern male giraffes).
Also, paleontologists' calculations do not account for the large mass of horns on his head Sivatherium (horns had only male). Finally, among these animals could be present more prominent individuals. This is indicated by the fact that one of the bones of the hind limbs had to be reduced by 15 percent (so it will fit the model made up of the bones of other animals).
The first remains in Pliocene deposits Shivalik Mountains (Himalayas) on the border of India and Nepal.
Dinofelis is widespread in antiquity and not lived up to our day's genus of saber-toothed cats, living on the territory of our planet for a long time. The word "Dinofelis" means from ancient Greek δεινός «terrible» and the Latin - felis «cat». This type of predator belongs to the genus of saber-toothed cats. They lived in Africa, Europe, Asia and North America. The remains belong to the period from the early Pliocene on the early Pleistocene.
Dinofelis was a ferocious beast, which likes to have on the dinner not only herbivores animals but also the beginning of the ancestors of humans. Dinofelis hardly be called a large predator. The height of adult cats averaged about 70 cm. The animal, depending on its kind and gender, may weigh from 30 to 120 kg. Dinofelis had a massive body and healthy limbs. Researchers believe that ancient cat paws were much stronger than that of modern big cats. The primary weapons of Dinofelis were sharps and flattened on the sides the upper canines. Massive clicks he used in the attack and it bites through the neck of its victim.
After that, the animal pressed the prey to the ground with enormous paws and mercilessly hack her body with sharp claws. After the death of the victim, Dinofelis hid it from other predators in a cave or some other safe place. The victims of a feral cat became antelopes, giraffes, pigs and horses, but often there were also the ancestors of man (Pithecanthropus and Australopithecus). Dinofelis lay in wait for the prey, and attacked it at a "convenient moment."
Scientists have counted several extinct animal species of this genus of saber-toothed cats. Species of Dinofelis - Dinofelis aronoki - was in the West African lands
Oystercatcher is an extinct animal because these birds remained without food because of commercial fishing in 1994. Oystercatcher lived in the Canary Islands off the coast of West Africa. Oystercatcher reached 40-45 cm in length. Body weight was 600-800 g, females were slightly heavier. The beak length was 8.7 cm for males and about 8 cm in females. Legs reach a length of 5 cm, the wings - 25-26.5 cm.
Oystercatcher had a shiny black color except for the whitish feathers on the bottom of the wings. The beak and rings around the eyes were painted a reddish-orange color; the hind legs painted in dark pink. Painting of young birds remains unknown, but they probably had lackluster naked parts and brownish-gray feathers, which provide camouflage from predators.
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Reducing the size of amounts Oystercatcher was due to excessive concern on the part of man and the predation of rats and cats. The last specimen was caught in 1913, and by the 1940s it was announced about the extinction of the species. Currently, Oystercatcher is considered to be an extinct bird. The museums are only four samples of stuffed birds in the world.
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