Title : Rare Footage Of Extinct Animals
link : Rare Footage Of Extinct Animals
Rare Footage Of Extinct Animals
Extinct Animals Not Anymore Around
1. Heath Hen - Extinct 1932
The heath hen was a distinctive subspecies of the greater prairie chicken, Tympanuchus cupido, a large North American bird in the grouse family, or possibly a distinct species, that became extinct in 1932.
Heath hens lived in the scrubby heathland barrens of coastal North America from southernmost New Hampshire to northern Virginia in historical times, but possibly south to Florida prehistorically.The prairie chickens, Tympanuchus species, on the other hand, inhabited prairies from Texas north to Indiana and the Dakotas, and in earlier times in mid-southern Canada.Heath hens were extremely common in their habitat during Colonial times, but being a gallinaceous bird, they were hunted by settlers extensively for food. In fact, many have speculated that the Pilgrims' first Thanksgiving dinner featured heath hens and not wild turkey. By the late 18th century, the heath hen had a reputation as poor man's food for being so cheap and plentiful; somewhat earlier Thomas L. Winthrop had reported that they lived on the Boston Common (presumably when it was still used to graze cows, etc.) and that servants would sometimes bargain with a new employer for not being given heath hen for food more often than two or three days a week.2. Thylacine - Extinct 1936
The thylacine binomial name: Thylacinus cynocephalus, Greek for "dog-headed pouched one") was the largest known carnivorous marsupial of modern times. It is commonly known as the Tasmanian tiger (because of its striped lower back) or the Tasmanian wolf.Native to continental Australia, Tasmania and New Guinea, it is believed to have become extinct in the 20th century. It was the last extant member of its family, Thylacinidae; specimens of other members of the family have been found in the fossil record dating back to the late Oligocene.Surviving evidence suggests that it was a relatively shy, nocturnal creature with the general appearance of a medium-to-large-size dog, except for its stiff tail and abdominal pouch (reminiscent of a kangaroo) and dark transverse stripes that radiated from the top of its back, similar to those of a tiger. The thylacine was an apex predator, like the tigers and wolves of the Northern Hemisphere from which it obtained two of its common names. As a marsupial, it was not closely related to these placental mammals, but because of convergent evolution it displayed the same general form and adaptations. Its closest living relative is thought to be either the Tasmanian devil or the numbat. The thylacine was one of only two marsupials to have a pouch in both sexes (the other being the water opossum). The male thylacine had a pouch that acted as a protective sheath, covering his external reproductive organs while he ran through thick brush. The thylacine has been described as a formidable predator because of its ability to survive and hunt prey in extremely sparsely populated areas.
3. Laysan Crake - Extinct 1944
It was a small bird (15-centimetre (5.9 in) from beaktip to "tail" tip, fully stretched out), a flightless member of the rail family. Tail and wings had been reduced in the course of its evolution to lengths of merely 2.5 centimetres (0.98 in) and 5.4 centimetres (2.1 in), respectively, and it only had 8 primaries as opposed to 10 in volant rails. The bill, measuring 1.8 centimetres (0.71 in), was strong and straight, and the legs were also well-developed; in its overall proportions it was similar to the small rails of the genus Laterallus, such as the black rail.Its coloration was essentially a lighter, more subdued version of that of the Baillon's crake, a closely related species from which it possibly had evolved. The face, throat, breast and supercilium were dull medium gray, and the back, wings and top of the head were pale brown with strongly contrasting feather shafts except on the wings. Scapular (shoulder) and flank plumage were sandy brown. The characteristic black-and-white barring of the lower belly and undertail coverts often seen in the genera Porzana and Rallus was much reduced. Feet and bill were a yellowish-olive green, and the iris was ruby red. The sexes were alike; downy young were black all over, with conspicuously long dark legs and a yellow bill, and immature birds had the entire underside colored pale brown.
4. Golden Toad - Extinct 1989
The golden toad was last sighted in 1989 in Costa Rica, and is now believed to be extinct. This toad displays extreme sexual dimorphism - large size and appearance differences between the sexes. It died out due to habitat loss and a fungus disease. |
| Male golden toad |
The golden toad was one of more than 500 species in the family Bufonidae—the "true toads". Males were orange and sometimes slightly mottled on the belly, while females showed a greater variety of colors, including black, yellow, red, green, and white; both sexes had smooth skin. Females were typically larger than males. Body length ranged from 39 to 48 mm in males and from 42 to 56 mm in females. Males had proportionally longer limbs and longer, more acute noses than females.Females also had enlarged cranial crests above the level of the orbit (eye socket), while in males the crests were much lower.
Individuals spent the majority of their lives in moist underground burrows, in particular during the dry season. The average lifespan of the golden toad is unknown, but other amphibian species in the family Bufonidae have an average lifespan of 10–12 years.
5. Baiji Dolphin - Extinct 2006/07
The Baiji Dolphin's extinction is somewhat in dispute. A film taken in 2007 was tentatively verified as showing the Baiji Dolphin, however, it has not been seen since and has been declared functionally extinct. It vanished due to overfishing.
The baiji is a functionally extinct species of freshwater dolphin formerly found only in the Yangtze River in China. Nicknamed "Goddess of the Yangtze" in China, the dolphin is also called Chinese river dolphin, Yangtze River dolphin, whitefin dolphin and Yangtze dolphin. It was regarded as the goddess of protection by local fishermen and boatmen in China (Zhou, 1991). It is not to be confused with the Chinese white dolphin or the finless porpoise.The baiji population declined drastically in decades as China industrialized and made heavy use of the river for fishing, transportation, and hydroelectricity. It has been credibly claimed, after surveys in the Yangtze River during the 1980s, that baiji could be the first dolphin species in history that humans have driven to extinction. A Conservation Action Plan for Cetaceans of the Yangtze River was approved by the Chinese Government in 2001. Efforts were made to conserve the species, but a late 2006 expedition failed to find any baiji in the river. Organizers declared the baiji functionally extinct. The baiji represents the first documented global extinction of a "megafaunal" vertebrate for over 50 years since the demise of the Japanese sea lion and the Caribbean monk seal in the 1950s. It also signified the disappearance of an entire mammal family of river dolphins (Lipotidae).The baiji's extinction would be the first recorded extinction of a well-studied cetacean species (it is unclear if some previously extinct varieties were species or subspecies) to be directly attributable to human influence.
6. Western Black Rhino - Extinct 2011
The Western Black Rhino was found mostly in Cameroon, Africa, and was believed to be genetically different to other subspecies. During the 1900s it was the most common species of rhino. It was wiped out do to poaching.
The western black rhinoceros was heavily hunted in the beginning of the 20th century, but the population rose in the 1930s after preservation actions were taken. As protection efforts declined over the years, so did the number of western black rhinos. By 1980 the population was in the hundreds. No animals are known to be held in captivity, however it was believed in 1988 that approximately 20–30 were being kept for breeding purposes. Poaching continued and by 2000 only an estimated 10 survived. In 2001, this number dwindled to only five. While it was believed that around thirty still existed in 2004, this was later found to be based upon falsified data.The western black rhino emerged about 7 to 8 million years ago. It was a sub-species of the black rhino. For much of the 1900s, its population was the highest out of all the rhino species at almost 850,000 individuals. There was a 96% population decline in black rhinos, including the western black rhino, between 1970 and 1992. Widespread poaching is concluded to be partly responsible for bringing the species close to extinction, along with farmers killing rhinos to defend their crops in areas close to rhino territories, and trophy hunting.
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