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The Koala
Inroduction
The koala is the Australian jewel. It has very furry, ash colored
hair, a rubbery black nose, sharp claws, fuzzy ears, and a grizzly
personality, or should I say, koalality. If you kill a koala, you'll make a
million off their fur! They would sell the fur to coat companies and make coats out of
koala fur. Well, sadly enough, too many people are making
millions on koalas. That's why they're endangered species.
Habitat
The koala is distributed along the eastern coastal semi-tropical
forests of Australia, ranging from north Queensland, New South Wales,
Victoria, and a small area in the south of Australia.
Breeding
The male koala and the female koala have two very different
mating calls. When humans reach their sexual maturity at around the age of 14 or 15,
koalas reach their sexual maturity at the age of two. The female produces one baby every
other year. The koala almost never produces twins. In the female's pouch, there are two
nipples. The female koala gives birth after a 20-35 day gestation period. When the joey
(baby koala) is born, it is no longer than 2 cm and weighs no more than a 1/2 gram. The
joey stays in its mother's pouch for 5-7 months. The term �joey� is used when you are
talking about a baby marsupial. The mother gives �pap� to the joey, a liquid from the
caecum (which is similar to the human organ, appendix.) This is thought to give the joey
the ability to eat only eucalyptus leaves. When the joey emerges from the pouch, it clings
to its mother for another seven months. The joey stays with its mother for another three
or four years, until it is fully grown.
Diet
Koalas eat eucalyptus and don't drink water. I guess that's how they
got their name. In the aboriginal language, �koala� means �no drink
water.� But, the koala does drink water, only when it is ill. Out of the 350
species of eucalyptus, the koala can only eat 20, will only eat 5, and only
prefers to eat a certain one.
Population and Extinction
Since the koala population has dropped since 50% since the turn of
the century, the Australian government passed a law banning anything
harmful to the koalas. At first, in the 1920's they were killed for
their fur. Then, somehow, a high percentage of them became infected
with a very contagious disease, chlamydia psittaci. Chlamydia psittaci
causes blindness, pneumonia, and for females, sterilization. It has slowed down a lot
since it was first introduced to the koala population, but the virus is still going around
(chylamydia psittaci is an endangered virus.) The koala population is also still falling
due to destroyed habitats. The developers are coming into koala habitat and cutting down
eucalyptus, selling it and building homes. By the 2030's, the koalas will have no place to
live. Now, sadly, in Sydney, koalas must cross the street to get to another eucalyptus
tree. They have to go to another eucalyptus tree every once and a while because that tree
is the same tree from the same forest. A lot of koalas are now becoming roadkill.
General Information
The koala is a one of a kind animal. It is the only one of its kind.
There are two sub-species of koala though, in which there is the
tiniest difference. The southern one has a darker colored fur than the northern because it
is colder in the south. The koala has only one relative, the wombat. Koalas and wombats
share a common ancestor from some 25 million years ago on the landmass Lauasia (an ancient
landmass that separated to make South America, Africa, and Australia.) Most people think
that the koala is related to bears, that is not true, the koala is an aboreal (tree
dwelling) bear. Most people also think that the koala is not harmful, that's wrong. The
koala is more like a grizzly bear than a teddy bear. The koala is dangerous because of its
extremely sharp claws. Its scientific name is Phascolarctos (pouched bear)cinerus
(ash-colored.) An adult four year old koala eats 1.3 kg. (3 lb.) of eucalyptus per day. It
also weighs 13.6 kg. (30 lb.) and is 60-85 cm. (21-33 in.) The koala sleeps a lot. The
koala is also nocturnal, that's why the koala exhibit at the zoo is always boring. The
eucalyptus that the koala eats is very impor
tant to them because if they change to a different forest, it could be fatal because they
can usually only eat one species of eucalyptus.
Help the Furballs!
There are lots of ways that we can save the koalas. First of all, we
can stop cutting down the eucalyptus trees. Second of all, BRAKE FOR
KOALAS! Third, there are hundreds of save the koala associations world
wide. Another reason koalas are dying is because of fires. Most of these fires come from
careless smokers. If you go to Australia one day and you see someone smoking, tell them to
make sure that they put it out. There is a koala hospital in South Queensland that is
building a 24-hour koala hospital. If you want more information on the Save the Koala
Campaign, visit http://onthenet.com.au/~jbergh/koala1.htm. You can write the Australian
Koala Hospital Assosiation, Inc. at [email protected] or snail mail them at The
Australian Koala Hospital Assosiation, Inc.^P.O. Box 2379^Nerang Mail Centre^QLD 4211
AUSTRALIA. A lot of people are also going up and protesting against the developers that
knock down the habitat of koalas.
Bibliography
Gaynor, Beth. Columbus Zoo: The Animals: Koala,
http://ourworld.compuserve.com/homepages/BGa ynor/docent.htm (Columbus:
compuserve.com)
Encyclop�dia Britannica, 1992 ed., 6:922, 23:357, 8:642-3.
(Chicago: Encyclop�dia Britannica, Inc.)
S. Bahr, Lauren, e.d. & Johnston, Bernard, e.i.c. Collier's
Encyclop�dia, 1992 ed., 3:253, 14:129. (New York: Macmillan
Educational Company)
Encyclop�dia Americana, 1996 ed., 16:526, 18:371. (Danbury:
Grolier, Inc.)
H. Harris, William, e.d. & S. Levey, Judith, e.d. The New
Columbia Encyclop�dia, 1975 ed., p. 1491 (New York: Columbia
University Press)
Bergh, John. Austrailian Koala Hospital Assosiation, Inc.: Koala
Facts Sheet, http://onthenet.com.au/~jbergh/koala2.htm
(Sydney: onthenet.com)
Bergh, John. Austrailian Koala Hospital Assosiation, Inc.: Koala
Facts Sheet, http://onthenet.com.au/~jbergh/koala4.htm
(Sydney: onthenet.com)
Bergh, John. Austrailian Koala Hospital Assosiation, Inc.: Koala
Facts Sheet, http://onthenet.com.au/~jbergh/koala1.htm
(Sydney: onthenet.com)
World Book Encyclop�dia, 1996 ed., 11:361 (Chicago: World Book,
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Payne, Oliver. �Koala Out on a Limb,� National Geographic
Magazine, April, 1995 (Washington, D.C.: National Geographic
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