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Extinct Species Of The World : Amazing Information

Extinction is a normal process in the course of evolution. Species have slowly evolved and disappeared throughout geologic time as the result of climate changes and the inability to adapt to survive competition and predation. Since the 1600s, however, the rate of extinction has accelerated rapidly because of human population growth and human resource consumption. Today, most of the world’s habitats are changing faster than most species can adapt to through evolution, or natural selection. The current global extinction rate is exponentially greater than the background (normal rate of extinction in the process of evolution) extinction rate. Many biologists believe that we are in the middle of the greatest mass extinction episode since the disappearance of the dinosaurs 65 million years ago.

Causes of extinction
There are a number of reasons that can contribute directly or indirectly to the extinction of a species or group of species. The primary causes of species extinction or endangerment are habitat destruction, commercial exploitation (such as plant collecting, hunting, and trade in animal parts), damage caused by non-native plants and animals introduced into an area, and pollution.

The survival of ecosystems (plant and animal communities and their physical surroundings) such as forests, coral reefs, or wetlands depends on their biodiversity, or variety of plants, animals, and habitats, as well as the many interactions among these species.

The removal or disappearance of one or several species may irreversibly damage the ecosystem and lead to its decline.

Some of the beautiful species that are extinct are discussed below:

Ivory-bill woodpecker
This elusive woodpecker known to be extinct in 1940s was seen again. On February 11, 2004, a kayaker caught a glimpse of a huge and unusual woodpecker in the Cache River National Wildlife Refuge of Arkansas. The encounter spurred an extensive scientific search for a species that many feared had vanished forever, driven to extinction by the destruction of southern old-growth forests. Further evidence and search proved that at least one of these species is still alive.

Caspian tiger
Caspian Tigers lived in China, Tajikistan, Iran, Afghanistan and Turkey. They were hunted for their furs and to protect livestock. A ban on hunting the Caspian Tiger in the USSR in 1947 followed their greatest destruction in the 1930s. The last Caspian Tiger reported shot was in 1957.

Quagga
Quagga, Equus burchelli quagga, of the Karoo Plains and southern Free State of South Africa were a subspecies of the Burchellâ’s Zebra, although their unique appearance wouldn’t necessarily make this apparent. Some thought incorrectly that the Quagga was the female of Burchell’s Zebra, probably because the natives gave both zebras the same name.

In the wild, Quaggas, Ostriches and Wildebeests often grazed together in what was termed the “triple alliance”. The Quagga’s hearing, the Ostrich’s eyesight and the Wildebeest’s keen sense of smell comprised excellent defense from predators for the entire herd. However, its limited range made it all the more vulnerable and Quaggas were hunted to the brink of extinction in the mid 19th century by settlers razing sheep, goats and other livestock. The last Quagga died in 1883 in an Amsterdam Zoo.

Dodo
In 1505, Portuguese explorers discovered the island of Mauritius and the 50 pounds flightless dodos which supplemented their food stores. Imported pigs, monkeys and rats fed on the dodo’s eggs in their ground nests. The last dodo was killed in 1681.

Tasmanian wolf
The Tasmanian wolf is not a wolf, but a carnivorous marsupial and a relative of wombats and kangaroos. It even has a pouch. Tasmanian officials promoting ranching paid bounties to hunters. Believed to be extinct for well over half a century, unconfirmed reported sightings persist.

Cave bear
The cave bear lived in Europe during the Pleistocene (1.8 million years ago to 11,000 years ago) from 500,000 years ago until 10,000 years ago. Their remains have been found in caves where they lived and early humans left their drawings on cave walls. When upright, they stood 12 feet tall.

Saber tooth tiger
Saber tooth tigers lived in Europe and North America. They were fast runners for short distances and probably ambushed their prey in packs. The hoplophoneus species lived 20 million years ago. The smilodon species lived during the Pleistocene from 1.6 million years ago to 10,000 years ago when it became extinct.

Irish deer
Herds of the giant Irish deer lived in Europe and Ireland during the late Pleistocene until about 10,000 or 11,000 years ago. It stood six feet high at its shoulders, the size of moose, and its broad antlers spanned 10 feet.

Bachman’s warblers
A recently extinct species, Bachman’s warblers nested in the underbrush of forested swamps in the region bounded by Louisiana up to Kentucky and Maryland, and over to the Carolinas and Georgia, migrating to Cuba in winters. None have been seen since the early 1960s in North America and they were listed as endangered in 1967.

Carolina parakeet
Once abundant, this extinct species nested in large colonies in the cypress swamps in the South Atlantic and Gulf States. They migrated up the Mississippi, and Missouri Rivers to the Platte and regularly to Ohio, Indiana, Illinois, Iowa, Wisconsin and Nebraska, and in the east to Pennsylvania. Hunted for their feathers and slaughtered as pests, the last reported sighting in the wild was a small flock in Florida in 1920.

Passenger pigeons
Wonderfully prolific, the passenger pigeon had the vast forests of the North as its breeding grounds, and travelled hundreds of miles in search of food. It was once thought that no ordinary destruction can lessen them. One of the most noted of extinct animals, passenger pigeons were reduced from numbers in the hundreds of millions for food.

Giant kangaroos
Giant kangaroos and wombats as large as modern rhinos once lived in Australia.

Phororhacos
The extinct bird, Phororhacos lived in South America during the Miocene and stood eight feet tall. Imagine running away from this carnivore!

Conclusion
Many of the efforts to conserve the natural world — wild habitats, species, biodiversity — will be in vain so long as the human population continues to increase, and so long as people continue to practice aggressive, predatory economic systems. It is up to us now to preserve the crippling environment of the world or else the humans will meet the same end as the beasts.

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