Top 10 Most Extinct Animals
Extinction happens when environmental or evolutionary problems. But some extinction is natural. There are many species is extinct in the modern age and are a direct result of human behavior. In the last ten thousand years, humanity’s impact on the environment has caused the extinction of animals. They have been at least five mass extinction in the history of life on earth, and four in the last 350 million years in which many species have disappeared in a relatively short period of geological time. The most famous species is extinct by a human is Dodo. The main cause of extinction is the destruction of natural habitats by human activities, such as cutting forests and converting land into fields for farming.
Major causes of extinction: Pollution, Population, Climate change
- West African Black Rhinoceros
West African Black Rhinoceros was found in several countries. In 1999 the World Wide Fund for Nature (WWF) was published a report was “African Rhino: Status Survey and Conservation Action Plan”. One recent example of West African Black Rhinoceros (Diceros bicornis longpies). It is one of four subspecies of Black Rhino and it was declared officially extinct in 2011. Measuring 3-3.8 meters and 1.4-1.7 in height. This rhino would have weighed 800-1300 kg. It had two horns one measuring 0.5-1.3. And other between 2-55cm.The last black rhino was seen in Cameroon in 2006.
The Dodo (Raphus cucullatus) is an extinct flightless bird that was endemic to the island of Mauritius. The first recorded mention of the dodo was by Dutch sailors in 1598. Dodo went extinct because of Dutch sailors hunting them for food. It’s commonly believed that the dodo went extinct because Dutch sailors ate the beast to extinction after finding that the bird was incredibly easy to catch due to the fact it had no fear of humans. Dodo was about 1 meter (3 feet 3 in)tall and may have weighed 10.6-17.6 kg. The dodo was declared a small ostrich, a rail, or a vulture.
- Mammuthus primigenius
Mammoth is any species of the extinct genus Mammuthus. The last species of emerging, the Mammuthus primigenius developed about 40,000 years ago in east Delhi. The Mammuthus primigenius was roughly the same size as a modern African elephant. Male reached shoulder heights between 2.7 and 3.4m (8.9 and 11.2ft) and weighed up to 6 metric tons (6.6 short tons). Females reached 2.6-2.9m(8.5-9.5ft) in shoulder height and weigh up to 4 metric tons (4.4 short tons). A newborn calf weighed about 90 kg. Mammuthus primigenius had very long tusks which were more curved than those of modern elephant.
- Pyrenean ibex
In January 2000, the Pyrenean ibex became extinct. The species was once numerous and roamed across France and Spain. The Pyrenean ibex had short hair which varied according to seasons. During the summer, its hair was short and in winter, the hair grew longer and thicker. The Pyrenean ibex was one of four subspecies of the Iberian ibex. The Iberian ibex also shows remarkable sexual dimorphism. Scientists don’t know exactly why the Pyrenean Ibex went extinct, but they theorize they died because of poaching disease, and the loss of food and habitat because of other herbivorous ungulates in the area. Competition with domestic and wild ungulates also contributed to the extinction of the Pyrenean ibex. Much of its range was shared with sheep, domestic goats, cattle, and horses, especially in summer when it was in the high mountain pastures.
- Passenger Pigeon
The passenger pigeon or wild pigeon (Ectopistes migratorius) is an extinct species of pigeon that was endemic to North America. Passenger pigeons were hunted by Native Americans, but hunting intensified after the arrival of Europeans, particularly in the 19th century. The passenger pigeon was a member of the pigeon and dove family, Columbidae. The passenger pigeon was sexually dimorphic in size and coloration. It weighed between 260 and 340 g (9.2 and 12.0). The adult male was about 390 to 410 mm (15.4 to 16.1 in) in length. The slightly larger passenger pigeon specialized in big seeds, eating acorns and the nuts of hickories, beeches, and chestnuts.
- Tasmanian Tiger
Tasmanian tiger, also known as the thylacine. The Tasmanian tiger lived in dry eucalyptus forest, wetland and grasslands in continental Australia Tasmania and New Guinea. A Tasmanian wildlife biologist says bringing extinct animals back to life is dangerous. Tasmanian tiger. A striped marsupial carnivore was thought to have gone extinct after Benjamin, believed to be the last member of the species, died in captivity in the Hobart zoo in September 1936. Tasmanian tiger was 39 to 51 inches (100 to 130 centimeters) long and the added to 20 to 26 inches (50 to 65 cm) to its length. They weighed 33 to 36 lbs. (15 to 30 kilogram), according to Encyclopedia Britannica.
- Saber-toothed cat
The saber-toothed cat went extinct about 10,000 years ago. The most popular theory that suggests the reasons for the Saber-toothed cat extinction talks about the tough times (during the late Pleistocene period) due to climate change, human hunting and scarcity of food. Many of the saber-toothed cat food sources were large mammals such as elephants, rhinos and other colossal herbivores of the era. Its length was about 2.2 meters and its shoulder height was 1.1 meters and weighed about 250 kg on average. Long the most completely known saber-toothed cat, Smilodon is still one of the best- known members of the group, to the point where the two concepts have been confused.
- Stellers Sea Cow
Stellers Sea Cow is an extinct sirenian who described George Wilhelm Steller in 1741. The sea cow head was small and short in comparison to its huge body. Steller’s sea cow lived in herds, floating close to the surface to feed on seagrasses. The sea cow heart was 16 kg in weight, its stomach measured 1.8m (6ft) long and 1.5m (5ft) wide. Steller’s sea cow had thick, wrinkled, bark-line skin that was black colored. They moved slowly, which made them very easy targets from hunters. We should never forget the stellers sea cow and we can honor its memory by working to prevent future extinctions.
- Baiji White Dolphin
The baiji was a type of freshwater dolphin thought to be the first dolphin species driven to extinction due to the impact of humans. Baijis lived in a small group of two to six; the largest recorded was 16 baijis. The baiji’s eyesight was poor and anyway not particularly useful because visibility in the water often wasn’t good. Females are slightly larger than males. A baiji conservation dolphinarium was established at the institute of hydrobiology (IHB) in Wuhan in 1992. It has a body length between 1.5 to 2.5m (4.9-8.25ft) and it weighs between 60 to 160 kgs (132-350lbs). They usually swim at speed of 10 -15km/hr (6-9mph) but they can reach speeds of 60 km/hr (37 mph) if they are threatened.
- Great auk
The great auk is a species of flightless alcid that became extinct in the mid-19th century. It was the only modern species in the genius Pinguinus. It is not related to the birds now known as penguins. The last time a great auk was seen alive was in 1852; today only bones, preserved specimens and old stories remain. The great auk was found in the cold North Atlantic coastal waters along the coasts of Canada, Greenland, Iceland, France, Ireland. The body of the great auk was 75cm (30 inches) long; the wings, which were used in swimming underwater, were less than 15cm long. The great auk was an important part of many Native American cultures, both as a food source and as a symbolic item. The great auk was one of the 4000 animal species formally described by Carl Linnaeus in his eighteenth-century work.
We have lost rain forests, part of the ozone layer, most of our natural resources, and now we are going to lose an animal. All these because of our behavior towards nature. For our benefits, we disturbed nature. So it’s our duty to correct the things which we have done wrong.
Animals should not require our permission to live on earth. Animals given the right to be here long before we arrived.
written by – Monika Sain