KOALA ON THE GOLD
COASTAnimal emblem of Queensland.
| I have lived in the bush for years and never
spotted a Koala. However since moving to the Gold Coast we have had
several visit our garden. Alerted
to their presence by a very loud guttural call at night, inspection in
the morning disclosed a large Koala sleeping in a gum tree.
Koalas sleep for about 18 hours a day and are
mostly only active at night. They feed on selected eucalypt trees,
therefore if these trees are not present you will not see a Koala in
the bush.
The
Koala has very large claws for climbing and will use them aggressively
towards humans if disturbed. The Koala is one of the few mammals that
has fingerprints. Their fingerprints are so similar to human
fingerprints that distinguishing between the two can be quite difficult
- even with an electron microscope.
The male Koala, like many marsupials, has a bifurcated penis [forked penis].
The female has two lateral vaginae, a feature unique to the Koala, and
it has two separate uteri which is common to all marsupials.
The brain in the ancestors of the modern Koala
once filled the whole cranial cavity,
but has become drastically reduced in the present species, a
degeneration scientists suspect is an adaptation to a diet low in
energy.
One of the smallest in marsupials with no more than 0.2% of its body
weight,about
40% of the cranial cavity is filled with cerebrospinal fluid, while the
brain's two cerebral hemispheres are like "a pair of shriveled walnut
halves on top of the brain stem, in contact neither with each other nor
the bones of the skull. It is the only animal on Earth with such a
strangely reduced brain.
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| A Baby Koala is called a "Joey" [the same as a
baby Kangaroo].
Koalas are erroneously referred to as "Koala
Bears". Most probably because their cute appearance reminds people of
teddy bears.
The
Koala is however in no way related to the bear genome.
The Koala is an arboreal marsupial herbivore
native to Australia and the only extant representative of the
Phascolarctidae family. The closest relatives to the Koala are the
Wombats, which comprise of the Vombatidae family.
There are no Koalas in Western Australia or
Tasmania.
Koalas
were hunted almost to extinction in Australia for their fur.
Their conservation status: Australia does not
consider the Koala to be a threatened species.
US government has declared the Koala a
threatened species.
In Queensland - Common, or "Least
Concern Wildlife" throughout the state,
except in the South East Queensland Bioregion, where it is listed as
Vulnerable. | | Joey
(baby Koala) Photograph by Erik Veland. | |
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