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Introduction
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Major endangered species
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Rare species
A rare species is a group
of organisms that are very
uncommon, scarce, or infrequently encountered. This designation may be applied
to either a plant or animal taxon, and is distinct from
the term endangered or threatened. Designation of a
rare species may be made by an official body, such as a national government,
state, or province. The term more commonly appears without reference to
specific criteria. The IUCN does not
normally make such designations, but may use the term in scientific discussion.
Rarity rests on a specific species being
represented by a small number of organisms worldwide, usually fewer than
10,000. However, a species having a very narrow endemic range or fragmented habitat also influences
the concept.[2][3] Almost 75% of
known species can be classified as "rare."
The International Union for Conservation of
Nature uses the term "rare" as a designation for species found in
isolated geographical locations. They are not endangered but classified as
"at risk."
A species may be endangered or vulnerable, but
not considered rare if it has a large, dispersed population. Rare species are
generally considered threatened because a small population size is more likely
to not recover from ecological disasters.
Rare species are species with small
populations. Many move into the endangered or vulnerable category if the
negative factors affecting them continue to operate. Examples of rare species
include the Himalayan brown bear, Fennec fox, Wild Asiatic buffalo and Hornbill.

There are many beautiful
animals on this great planet. Some are familiar to us because we’ve seen them
in person, on one of the many television shows devoted to animals, or in school
books or biology textbooks. Other animals are rare. So rare, in
fact, that you may have never heard of them. Or, you may have heard of
them, and know that they are extremely rare because they are
critically endangered. Here are some of the rarest animals in the world.
10. Tarsiers

Tarsiers are found only in the islands of
Southeast Asia. Since Southeast Asia encompasses a wide range of islands
– Thailand, Cambodia, Indonesia, the Philippines, and more, that might not seem
like these little guys are so rare. When you think about the fact that
they used to live in many more regions, it sort of puts in in
perspective. They mostly live in Borneo. These little primates are
only 4-6 inches tall, but their hind legs are twice the length of their
torso. Additionally, their eyes are each the size of their brains. What else makes
these adorable little primates so rare? They are the only primates who
are completely carnivorous – insectivorous to be exact. They stalk bugs
and jump at them. They also eat small animals like birds, bats, lizards,
and snakes. Tarsiers are considered Critically Endangered and will likely
be on that list for some time. They are, thus far, impossible to breed in
captivity.
9. Okapi

Is it a giraffe? Is it a zebra? Is it a
ziraffe? A gebra? It’s an Okapi! Ever heard of it?
Apparently, the Okapi’s history reaches back to ancient Egypt, where carvings
have since been found. In Europe and Africa, prior to the 20th century,
there existed legends of an “African unicorn.” Today, that animal is
thought to be the Okapi. In 1887, Henry Morton Stanley reported on a type
of donkey in the Congo named an “Atti.” Today, THAT animal is thought to
be the Okapi as well. Scientists, zoologists, and scholars know a lot
more about the animal today. For instance, the fact that it is related to
the giraffe, despite it’s zebra-like markings, and the fact that the species
Okapia johnstoni is considered a “living fossil,” a creature who seems to be
the same species as it’s ancient fossils and has no close living relatives (I
guess the giraffe is a VERY distant cousin). There are about
10,000-20,000 alive in the wild, but since this dude is sooooo vintage, he goes
on the list.
8. Sao Tome
Shrew

The Sao Tome Shrew is on the Critically Endangered list because not only
are there few left, their habitat is progressively declining. The
population continues to decrease, making these animals rare. Found only
Sao Tome Island, a small island that is actually a shield volcano that rises
out of the Atlantic Ocean. These little shrews are only about 3 inches
long, and have white teeth (other than the standard yellow) and light bellies.
7. Red Wolf

The Red Wolf is a cousin to the Gray
Wolf. The Red Wolf was actually deemed extinct in the wild in 1980.
There were, luckily, some Red Wolves were still in captivity, twenty to be
exact. Wildlife conservationists increased the number of Red Wolves in
captivity to 207, and today there are about 100 living in the wild. A
success story, yes, but the factors that caused the Red Wolf to become so
endangered are still present today, in that their hunting ground has been
severely depleted. Luckily there are wildlife preserves that allow these
wolves to live in their natural habitat, though protected from urban sprawl.
6. Northern
Hairy-Nosed Wombat

This cute critter, considered one of the
rarest large mammals in the world, is on the Critically Endangered list.
Over 39 inches long, the Northern Hairy-Nosed Wombat is a shade larger than
normal wombats, and are able to breed faster, though that has not improved
their Critically Endangered status. These vision-impaired marsupials
inhabit a mere 750 acre space in Epping Forest in Queensland, except for a
second colony (recently
established) that lives in a predator-protected refuge in St. George.
Currently there are only about 130 Northern Hairy-Nosed Wombats alive.
5. Seychelles
Sheath-Tailed Bat

This sac-winged bat lives in the Seychelles
Islands that lie north of Madagascar. Once abundant throughout the island chain, the Seychelle
Sheath-Tailed Bat is extinct on most of the islands. The bats live in
harem colonies, and have a high reproductive potential. Unfortunately,
they are very susceptible to habitat changes, and because of their need to
roost in several different locations within a habitat, their survival has not
been overly successful. There are less than 100 Seychelles Sheath-Tailed
Bats thought to live in the world.
4. Javan Rhino

The Javan Rhino is one of five living
rhinoceros types, and is part of the same genus as the Indian Rhinoceros, but
they are smaller. These Javan Rhinos were once abundant in Indonesia and
Southeast Asia, but they are now on the Critically Endangered list with only
about sixty (broken into two known populations) in the wild. There are no
Javan Rhinos in captivity. The Vietnam War is cited to be one of the
biggest deterrents to the Javan Rhino’s existence, in that it severely depleted
its natural habitat. Some sources say that this rhino is THE rarest large mammal in the world, unlike the
Fur-Nosed wombat, who is somewhere on the “Most Rare” list.
3. Golden Tabby
Tiger

This type of rare tiger is only found in
captivity. The coloring is a result of a recessive gene, and sometimes
the Golden Tabby is also called the Strawberry Tiger. These types
of tigers have a Bengal
parentage, but generally have Amur tiger in their lineage somewhere. This
type of tiger has been in existence as far back as the early 1900s, and their
occurrence is strangely tied to areas with a heavy concentration of clay in the
soil. There are less than 30 of these tigers known in existence.
2. Yangtze
River Dolphin (Baiji)

Also called the Chinese River Dolphin, the
Whitefin Dolphin, and the Yangtze Dolphin, the Baiji is NOT the Chinese White
Dolphin. This rare animal has become “functionally extinct” because
of China’s industrialization. Late in 2006 researchers were unable to find any of these
mid-size dolphins, but in August of 2007 a Chinese photographer captured an
image of what might be a Bainji. There are anywhere between 0 and 13
Yangtze River Dolphins left in the world.
1. Pinta Island
Tortoise

The Pinta Island Tortoise has been reduced to
one known survivor – Lonesome George. A Galapagos tortoise, George is
considered a “poster child” for the conservation efforts in the Galapagos Islands.
George is about 100 years old, and all he’s missing is a mate. In fact,
some sources report that there is a $10000 reward for someone who finds a
female mate for George. There is some skepticism about George’s claim as
the last Pinta Island Tortoise in the world. A Prague zoo claims to have
another male that they call Tony, but this information is unconfirmed.
Update: Lonesome George died on June 24, 2012. The subspecies is believed to have become extinct; however,
there has been at least one first-generation hybrid individual found outside
Pinta Island.


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