1.  That was one of the largest land carnivores of all time. Height:-Up to 43.3 feet long, and 16.6 ft tall, Weight:- 7 tons. It was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Relative to the large and powerful hindlimbs. There forelimbs were small and they retained only two digits. Fossils of T. rex have been found in North American rock formations dating to the last three million years of the Cretaceous Period. It was among the last dinosaurs to exist prior to the Cretaceous-Tertiary extinction event. Some of which are nearly complete skeletons. Some researchers have discovered soft tissue as well.
2. Native:- Africa. That was a subspecies of the plains zebra.The name comes from a Khoi- khoi wordfor zebra and is onomatopoeic, being said toresemble the Quaggas call. The quagga was originally classified as anindividual species, Equus quagga, in 1788. It was distinguished from other zebras byhaving the usual vivid marks on the frontpart of the body only. In the mid-section, the stripes faded andthe dark, inter-stripe spaces became wider,and the hindquarters were a plain brown.Cause of Extinct:- for meat, hides, and topreserve feed for domesticated stock.The last wild quagga was probably shot inthe late 1870s, and the last specimen incaptivity died on August 12, 1883 at the ArtisMegistra zoo in Amsterdam.The quagga was the first extinct creature tohave its DNA studied.
3. That was the largest known carnivorousmarsupial of modern times. Native:-Australia and New Guinea.Extinction:-20th century. It is commonly known as the TasmanianTiger (due to its striped back), and also knownas the Tasmanian Wolf.It was the last extant member of its genus, Thylacine although a number of relatedspecies have been found in the fossil recorddating back to the early Miocene.The Thylacine became extinct on theAustralian mainland thousands of years beforeEuropean settlement of the continent.Intensive hunting encouraged by bounties isgenerally blamed for its extinction.
4. Stellers Sea Cow: The  Native:-near the Asiatic coast ofdefense less beast (extinct the Bering Sea.since 1768)  Discovered in 1741 by “George Steller .”  Grow Up to 7.9 meters (25.9 ft) long.  Weight:-3 tons.  It looked somewhat like a large seal, but had two stout forelimbs and a whale-like tail.Its skin is black and thick, like the bark of an old oak...,  Its head in proportion to the body is small...  It has no teeth, but only two flat white bones-one above, the other below".  It was completely tame.  Extinction:-The arrival of humans.
5. Irish Deer: The largest  That was the largest deer that everdeer that ever lived lived.(extinct about 7,700  Native:- Eurasia, from Ireland to eastyears ago) of Lake Baikal, during the Late Pleistocene and early Holocene.  The latest known remains of the species have been carbon dated to about 5,700 BC, or about 7,700 years ago.  Size:- About 2.1 meters or 7 feet tall at the shoulders, and in particular for having the largest antlers (a maximum of 3.65 meters/12 feet from tip to tip and weighing up to 90 pounds).  Extinction Cause :- Hunting by man.  It would have co-evolved with humans throughout its existence and presumably have adapted to their presence.
6. That was the westernmost subspecies of tiger.Caspian Tiger: The   Places, They were found:- Iran, Iraq,third largest (extinct Afghanistan, Turkey, Mongolia, Kazakhstan,since 1970) Caucasus, Tajikistan, Turkmenistan and Uzbekistan.  Extinct:- Since 1970s.  Quite stocky and elongated with strong legs, big wide paws and unusually large claws.  The ears were short and small, and gave the appearance of being without hair on the tips.  Around the cheeks the Caspian tiger was generously furred and the rest of its fur was long and thick.  Weight:- Male Caspian tigers were very large and weighed 169-240 kg.  Females were not as large, weighing 85-135.  The colouration resembled that of the Bengal tigerr
7. The aurochs, the ancestor of domestic cattle, isAurochs: a very large  an extinct type of large wild cattle that inhabitedtype of cattle (extinct Europe, Asia and North Africa; they survived insince 1627) Europe until the last recorded aurochs, a female, died in the Jaktarow Forest, Poland in 1627.  Scientific name: Bosprimigenius.  Native:- Europe.  Reached Europe about 250,000 years ago.  Aurochs evolved in India some two million years ago.  migrated into the Middle East and further into Asia.  As the population of aurochs declined, hunting ceased but the royal court still required gamekeepers to provide open fields for the aurochs to graze in.  The last recorded live aurochs, a female, died in 1627 in the Jaktorow Forest, Poland.
8.  Cave Lion commonly known as theCave Lion: one of the European or Eurasian cave lion, is anlargest lions ever (extinct extinct subspecies of lion known from2,000 years ago) fossils and many examples of prehistoric art.  Scientific name: Pantheraleospelaea.  .The cave lion, also known as the European or Eurasian cave lion.  This subspecies was one of the largest lions.  Cause of extinction:- fossils and a wide variety of prehistoric art during the Worm glaciations.  found in 1985 near Germany.  height :- around 1.2 m  length:- 2.1 m without a tail.
9.  The golden toad was a small, shiny, bright trueGolden toad that was once abundant in a small region of high-altitude cloud-covered tropical forests,Toad(Extinct about 10 square kilometres in area, above the city of Montverde, Costa Rica.since 1989)  Scientific name: Bufo periglenes.  The toad recognized by its brilliant golden orange colour.  Native:- Tropical cloud forests which surround Montverde, Costa Rica.  It last bred in normal numbers in 1987, and its breeding sites were well known.  Cause of extinction:-In 1987, due to erratic weather, the pools dried up before the larva had matured, and they were going extinct.  Out of potential 30,000 toads, only 29 had survived.  In 1988, only eight males and two females could be located.  In 1989, a single male was found this was the last record of the species.
10.  Scientific name: Monachustropicalis.Caribbean Monk  The Caribbean monk seal, west Indian seal, or sea wolf, as early explorers referred to it, wasSeal (Extinct since a species of seal native to the Caribbean andJune 6th2008) now believed to be extinct. The Caribbean monk seals main predators were sharks and humans.  The Caribbean monk seal was the first New World mammal to be discovered by Columbus and his company on the coast of Santo Domingo in 1494.  Columbus promptly ordered his crew to kill eight of the animals.  The Caribbean Monk Seal was sluggish on land.  It was officially declared extinct just last year, on June 6th, 2008.  It is also the only species of seal to go extinct directly due to human causes.
11.  They are found in:- Asia, Europe, North America.  These animals have long since gone extinctWoolly Mammoth and are known mostly from fossils, from(Extinct since frozen, mummified carcasses, and even from10000 year old) ancient cave drawings.  Live in North Africa until about three million years ago.  Mammoths lived from about 2 million years ago to 9,000 years ago, during the last ice age (the Pleistocene Epoch).  The various mammoths ranged in size from about 9 ft (2.7 m) tall to over 15 ft (4.5 m) tall.  The tusks were used in mating rituals, for protection, and for digging in the snow for food.  The longest tusks were over 17 feet (5.2 m) long.
12. Endangered Animals in India are listed below: Asiatic golden Fishing Cat cat Asian Gaur Elephant Other 82 animals are in listed.
13. The flightless Great Auk was the onlyGreat Auk: largest of species in the genus Pinguinus. It wasall auks (extinct also known as garefowl, or penguin.since1844) Scientific name:-Pinguinus impennis. Native:- Atlantic.  Standing about 75cm or 30-34 inches high. Weighing around 5 kg.  It had white and glossy black feathers. Place, they were found:- islands off eastern Canada, Greenland, Iceland, Norway, Ireland and Great Britain. it was eventually hunted to extinction.
14. Dodo:- Scientific name:- Raphus cucullatus. The Dodo is an extinct, flightless bird that wasthe archetype of endemic to the Mascarene island of Mauritius.extinct species Genetically nested within pigeons and doves, its(extinct since closest genetic relative was the Rodrigueslate 17th Solitaire, the two forming the Raphinaecentury) subfamily. It stood about a meter tall (three feet),  lived on fruit and nested on the ground. Extinction occurred:-During recorded human history, and was directly attributable to human activity.
15. Passenger The Passenger Pigeon or Wild Pigeon was a bird that existed in North America until the early 20th century whenpigeon :-( it became extinct due to hunting and habitat destruction.Extinct since The species lived in enormous migratory flocks. Scientific name:-Ectopistes migratorius.1914) 1. The story of the Passenger Pigeon is one of the most tragic extinction stories in modern times. 2. They were actually the most common bird in North America. 3. Its population numbered an astounding 3 to 5 billion. 4. The birds were seen as a threat to farmers. 5. As recently as around 200 years ago they weren’t anywhere near extinction. . 1. Cause of extinction:-Pigeon meat was commercialized and recognized as cheap food, especially for slaves and the poor, which led to a hunting campaign on a massive scale. 2. The last Passenger Pigeon, named Martha, died alone at the Cincinnati Zoo at about 1:00 pm on September 1, 1914.
16. Other extinct birds:-
17. Endangered birds:-
18. what we can do to save Wildlife ?1. Here are the list of the things you can do to help those endangered animals from over killing. Try one or all of these suggestions to help preserve the Earths endangered species.2. Join one of the organisations about saving our animals.3. Refuse to buy products that contain animal ingridients such as fur, ivory, and tortoiseshell.4. Refuse to buy products that have been tested on animal’s.5. Think about what you eat.6. Start or join a local community effort to save an area of land used by wildlife.7. Buy recycled paper and save paper for recycling to help conserve forested habitat’s.8. Lend your Support.9. Studied and Research Herbs.10. Recycle.11. Respect the Animals.12. Stop using Insecticides and Pesticides.13. Stop Violence against Animals.