'/> Amazing Animals: Javan Rhino
Showing posts with label Javan Rhino. Show all posts
Showing posts with label Javan Rhino. Show all posts

Wednesday, January 8, 2014

The World’s 10 Rarest Animals!

An updated list of the world’s 10 most rarest animals. Read to know more about Lonesome George and his company.

Helpless to human cruelties, natural calamities, competitions for food with other animals and modernization, these animals could only whisper and cried… HELP! Studies done in 2010, revealed that about 35 species of animals have global populations of less 1000. Below is a compilation of the 10 rarest animals in the world. Read and learn! Who knows, this may be your last time to see them, before they totally disappear forever.

10. Red Wolf

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The Red Wolf (Canis lupus rufus), is one of two species of wolves still roaming the marsh areas of the southeastern USA. Much smaller than gray wolves, fully-grown adults can reach 26 inches at shoulder length and weigh from 50-80 lbs. The red wolf coat is normally brown with some shade of black and gray. An excellent night hunter, red wolf feeds on small mammals like rodents, rabbits, raccoon, muskrats and occasionally deer.

Due to rampant hunting, habitat disruption, and interbreeding with coyotes, red wolf population almost made it to the brink of extinction. In 1973, concern authorities initiated a breeding program and all remaining red wolves were captured. By 1980, this species of canid became extinct in the wild. The breeding program was successful, and by 1987, animals born in captivity were re-introduced into North Carolina. Currently, the Red Wolf population stands at 300 captive wolves, scattered in over 30 captive breeding facilities. A hundred more is freely roaming the wild.

9. Iberian Lynx

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Iberian Lynx (Lynx pardinus),is the world’s most endangered species of cat. Formerly widespread in Spain and Portugal, the Iberian lynx is now confined in Andalusia; inhabiting woodlands and open pasture feeding primarily on rabbits. Smaller than other lynxs, adults measure around 85 to 110 cm long, stand 60 -70 cm tall and weigh 12.9 kilograms. The Iberian lynx carries a light grey or brownish yellow coat mark with leopard-like spots. Also, it has a short tail.

Slowly losing its habitat, victims of rampant hunting, and declining numbers of its prey (rabbits), this cat species is on the brink of extinction. Studied done in 2005 revealed that fewer than 200 Iberian lynx, way below from the 4000 individuals recorded in 1960. The government still roams freely in the wild.

In 2005, full-blown conservation projects were initiated by the Spanish government, and gained positive results. Three cubs were raised in captivity in 2005 and three more cubs in 2009. Though the breeding populations are confined only in Spain, decent progress has been achieved. In 2008, 150 Iberian Lynx are recorded in the Sierra Morena area. Authorities are hoping to breed 20 to 40 individuals each year that would be re-introduced to other breeding areas.

8. Tamaraw

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The Tamaraw (Bubalus mindorensis) also known as Mindoro Dwarf Buffalo is endemic to Mindoro. When fully grown, this water buffalo grows to about 100 to 105 cm at shoulder length, 220 cm long and weighs between 200 to 300 kilograms. Adults sport gray to brown coat with short legs. Tamaraws are found in upland forested areas, grazing on grasses.

Due to hunting, habitat loss and other illegal forest activities, its numbers have dwindled down considerably. On the onset of the 19th century, estimated individuals were around 10,000, 120 in 1975 and go up to 370 in 1987. In 2004, the IUCN declared the Tamaraw as Critically Endangered. The current population is estimated to be around 30-200 individuals.

7. Northern Hairy-nosed Wombat

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The Northern Hairy-nosed Wombat (Lasiorhinus krefftii), is Australia’ rarest marsupial. A century ago, they were widespread Victoria, Queensland and New South Wales. Today, their population is restricted in the Queensland Epping Forest. These marsupials are found in woodlands and grasslands feeding primarily on grasses. Adults average one meter long and 40 kg in weight.

The Northern hairy-nosed Wombat population declined is caused by hunting, habitat loss, drought and competition for foods with other animals. Programs initiated by the Queensland and Commonwealth authorities yielded good results. From an estimated 90 individuals in 2002, the population rose to about 115 wombats. Recovery actions are still ongoing.

6. Hispid Hare

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The Hispid Hare (Caprolagus hispidus),was once widespread across the Himalayan mountain chain, stretching from India, Nepal to Pakistan. Today, its numbers have declined due mostly to habitat loss, hunting, diseases and natural calamities. It has rough, dark brown hair and short ears. It is about 38 – 50 cm long and weighs 2 – 2.5 kg. Hispid Hare feeds on bark, grass roots, shoots and occasionally crops.

In 1964, Hispid Hare was believed extinct until one individual was seen in 1966. Census made in 2001 put the population at around 110 individuals, but due to the animals weird behavior during captivity, Hispid Hare’s numbers are continuing to decline.

5. Javan Rhino

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The Javan Rhinoceros (Sunda Rhinoceros), was once widespread across Southeast Asia, China and India. But due to rampant hunting for its prized-horn, and deforestation; Javan rhino is now a critically endangered species. The Javan Rhino primarily lives in dense valleys and train forests, Its diet consists primarily of tall grasses. Adults grow to about 1.4–1.7 m tall, 3.1–3.2 m long and weigh between 900-2,300 kg. Javan Rhino is famous for its saddle-like skin over the neck.

Although protected by law, Javan Rhino’s survival rate is too small, since poaching for horns still strive. In Currently, the Javan rhino population occurs in only two places; Ujung Kulon National Park in Indonesia (around 50 – 60) individuals are recorded in 2005); and Cat Tien National Park in Vietnam (around 2-7 individuals recorded in 2005).

4. Seychelles sheath-tailed bat

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The Seychelles Sheath-tailed Bat (Coleura seychellensis), is one of two bat species found Seychelles Islands, Madagascar, From the 1800s and throughout the 1900s, this sac winged bat was very abundant in the island, but its population started to decline in the latter part of the 1900s. Just like other bats, Seychelles Sheath-tailed bat is found hanging in caves, palm trees and houses. A known insectivorous, it is about 5.5–6.5 cm in height and 10 – 11 g in weight.

In 2004, IUCN listed the Seychelles Sheath-tailed Bat as Critically Endangered. Two reasons are considered to the decline in population, namely; Introduction of new plant varieties and pesticides resulting in habitat loss, and introduction of barn owl to the bat’s environment. Scientists are doing more researches on how to save the Sheath-tailed Bat from extinction. Figures released in 2004, showed that there are about 50 -100 individuals still alive in the world.

3. The Vancouver Island Marmot

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The Vancouver Island Marmot (Marmota vancouverensi), is considered the rarest mammal in Canada. This alpine-dwelling rodent is found on Vancouver Island living in underground burrows. It is a small marmot that averages 70 cm in length and weighs about 3-7 kg. It sports a thick, glossy chocolate-brown coat. It has small-rounded ears, small eyes, flattened nose, and short legs with sharp claws.

Since this marmot was discovered in 1910, its population is dwindling in such a fast pace. At the end of 2005, there were 29 animals confirmed alive in the wild. Breeding programs which started in 1997 has produced decent results – In 2007 alone, 60 pups were born and 162 individuals raised in captivity.

2. Baiji (Yangtze River Dolphin)

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Baiji (Lipotes vexillifer),more commonly known as the Yangtze River Dolphin, is a freshwater dolphin that is currently endemic only to Yangtze River, China. A streamlined dolphin, it has a flexible neck, long and narrow beak. Baiji has a bluish-gray upper body and white to grayish-white belly. Adults average from 153 to 230 kg in weight and is about 2.5 m long.

In the 1950s, Baiji numbered about 6000 individuals, but its numbers rapidly declines in the next 50 years. By 1970, the Baiji’s population was estimated at less than a thousand. In the 1980s, about 400 individuals were recorded and by 1997, only 13 individuals remain! The drastic declined in Baiji population is attributed to China’s modernization. Its habitat, the Yangtze River becomes a prime conduit for industrialization where it uses for hydroelectricity, fishing and transportation.

Listed as Critically Endangered since 1996, and by 2006, the species was declared “functionally extinct”. However, in 1997, new sightings of Baiji were reported in the local news. Let’s just crossed our fingers that this gentle animal is not yet on the list of Museum animals!

1. Pinta Island Tortoise

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Lonesome George occupies the top spot in our list. But who is Lonesome George? He is the world’s rarest creature and the only surviving member of the Pinta Island Tortoise (Geochelone nigra abingdoni). These species of giant tortoise is endemic to the Galapagos Islands. First spotted in 1971, Lonesome George is about a hundred years old. For several years, attempts were initiated at mating him with females of other species but were all unsuccessful. Perhaps, all Lonesome George needs a female of the same subspecies.

Good news greeted Lonesome George early January 2011, scientist are bringing in to the island two Hood Island Giant Tortoise(Geochelone hoodensis) females. They believe that this subspecies having near genetic similarities with George will produce positive results.

On 24 June 2012, at 8:00 am local time, Edwin Naula, Director of the Galápagos National Park, announced that Lonesome George had been found dead by his caretaker of 40 years,

Sunday, May 6, 2012

Rhino: The Amazing Armour Clad Survivors

Relics of another age, the tank-like rhinos are well-armored against any animal predators, but vulnerable to poaching for their horns. Although their eyesight is poor, rhinos have very well developed senses of smell and hearing. Rhinos are a declining group of mammals. In prehistoric times they were numerous and varied, but today they are heading towards extinction – unfortunately helped by mankind.

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Rhinoceroses are large, tough-skinned herbivores immediately recognizable by the prominent horn (or horns, depending on the species) on their snouts. The name ‘rhinoceros’ comes from two Greek words ‘rhinos’ (nose) and ‘keras’ (horn). Unlike the horns of cattle, sheep or antelopes, those of the rhinos have no bony core; they consist of a densely packed outer layer of tough keratin fibres mounted on the skull. Although their eyesight is poor, rhinos have very well developed senses of smell and hearing.

Indian Rhino

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Three species of rhino live in Asia. The Indian Rhino (Rhinoceros unicornis) or greater one-horned rhinoceros is the most westerly of the species. Once found along the length of the Ganges and Brahmaputra river, it is now largely confined to national parks such as the Chitwam in Nepal and the Kaziranga in Assam. Although some 1700 animals survive today – a vast improvement on the 40 or so animals that existed in 1910 – the Indians rhino still regarded as endangered.

The Indian rhino is a good swimmer. It lives a large solitary life, except when males and females meet briefly to breed or when a mother is rearing her young. Females occupy home ranges extending over nine to fifteen square kilometres; these areas overlap and are undefended, and the animal may wander even further afield in search of food and water. Males have large home ranges, which they will occasionally defend. Neighbours rarely fight or confront each other. Conflict may arise when a strange adult male enters another’s areas, but a dominant male will tolerate the presence of a weaker or non-breeding male in his home range.

Javan Rhino

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The Javan Rhino (Rhinoceros sondaicus) or lesser one-horned rhinoceros (once found in Sumatra, Java, Indochina, China, and in Assam up as far as the Ganges Delta) is now severely reduced in numbers. Only about 50 survive in the Udjong Kulon Reserve near Jakarta, with possibly a few hanging on in remote parts of Indochina, making it one of the most endangered of all mammal species.

Scattered populations of the Sumatran or Asian two-horned rhinoceros inhabit Borneo, Burma, Thailand, Sumatra and Malaysia today; formerly it ranged from Assam and Bengal to Vietnam and south to Borneo. It is in several national parks such as such, Taman Negara in Malaysia and Kota Kinabalu in Borneo. Probably no more than 150 animals exist today.

The skins of Indians and Javan rhinos are hairless. The large Indians species may measure up to 1.9 m at the shoulder and weigh up to two and a quarter tonnes. The Javan rhinos are slightly smaller; it grows up to 1.7m high and weigh up to one and a half tonnes. The Sumatran rhino is still smaller, standing up 1.3 m and weighing up to 800 kg. It also distinguished by sparse covering of long hair.

Sumatran Rhino

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The Sumatran rhinoceros (Dicerorhinus sumatrensis) is the smallest extant rhinoceros species, as well as the one with the most hair. It can be found at very high altitudes in Borneo and Sumatra. Due to habitat loss and poaching, its numbers have declined and it is the most threatened rhinoceros. About 275 Sumatran rhinos are believed to remain.

A mature rhino typically stands about 1.3 m (4 ft 3 in) high at the shoulder, has a length of 2.4–3.2 m (7 ft 10 in–10 ft 6 in) and weighs around 700 kg (1,500 lb), though the largest individuals have been known to weigh as much as 1,000 kilograms. Like the African species, it has two horns; the larger is the front (25–79 cm), with the smaller one usually less than 10 cm long. Males have much larger horns than the females. Hair can range from dense (the densest hair in young calves) to scarce. The color of these rhinos is reddish brown. The body is short and has stubby legs. The lip is prehensile.

The White Rhinos

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There are two subspecies of white rhino: the southern white rhinoceros (Ceratotherium simum simum) and the northern white rhinoceros (Ceratotherium simum cottoni). The white rhino is the giant of the family, measuring up to two metres high at the giant of the shoulders and weighing two and a half to three and a half tonnes – a bulk exceeded in land mammals only by the elephants. As with the Indians rhino, mature white rhino males are much larger than the females. The black rhino is about the same size as the Javan Rhino – up to 1.6 m high and weighing up to 1.3 tonnes.

Since white and black rhinos are actually grey in colour, the best way to tell them apart is by comparing their shapes. White rhinos have a prominent hump on the back of their necks which contains the ligament needed to support their huge. They also have longer muzzle and broader mouth than the black rhino. Black rhinos have a lengthened upper lip which can grasp the branches of bushes and shrubs on which they feed.

Black Rhino

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The Black rhino (Diceros bicornis) is found throughout most of central and southern Africa. The greatest numbers are found in Tanzania and Kenya, mainly in the national parks, such as Serengeti, Ngorongoro, Masai- Mara, Amboseli and tsavo. It is relatively abundant and widespread. But it was once more numerous. In 1980 there were some 15,000 black rhinos; today, poaching throughout its range, especially south of the Zambezi River, has seriously depleted many black rhino populations and there are now under 9,000 animals. Recent reintroduction programmes in the parks of Zimbabwe and Mozambique, and the Addo Park of South Africa have improved the situation locally other populations live in the Etosha National Park in Namibia, in Somalia, Chad, Uganda and Zaire.

Although the black rhino is smaller than the white rhino, it has the reputation of being more aggressive, particularly towards humans. Marry African adventure stories feature a black rhino charging an intrepid hunter who bravely dispatches the ‘enraged beast’ with his gun. The myth of the black rhino’s aggression is based on a half- truth: whole an animal will always charge at an intruder (even another rhino) the charge is not an attack but a display. The animal will either veer off to one side, or stop the charge at a few feet from the victim.

Like other rhinos, black rhinos deposit dung as a means of marking pathways and territory. Where there are few rhinos per hectare, the home ranges of males overlap and are not usually defended by them. Where the density of black rhino is greater, such as in the Hluhluwe- Umfolozi Reserve in South Africa, breeding males will defend territories of 400 hectares against other breeding males. However, non- breeding males are still tolerated within these areas by the resident male. Mating takes place at any time of the year and is followed by a 15 month gestation. The single young, weighing 40kg at birth, lives with the mother for up to four years. Among black, white and Indian rhinos there is usually a space of two to four years before the females have another offspring. Births occur in any month.