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The Life Of A Koala BearKOALA BEARS

 

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Names & Sizes

Color & Life Span

Food & Nutrition

Breeding

Baby

Physiology

History & Habitat

 




Koalas do not get drugged out on gum leaves because their digestive system is especially adapted to detoxify the poisonous chemicals in the leaves.

Food & Nutrition

Koalas survive on a diet of strictly eucalyptus leaves.  They consume eucalyptus leaves and bark from 12  different eucalyptus tree species.  Each koala eats 200 to 500 leaves per day. Eucalyptus foliage is very fibrous and low in nutrition, and to most animals it is very poisonous.

They also like
mistletoe & box
leaves.

Sometimes they
eat leaves from
other trees such
as wattle tree,
tea tree, and
paperbark tree.

Koalas seldom drink water,
but when they do the water
that they obtain comes from the eucalyptus leaves, which
are 50% water.

Koalas have a slow metabolic rate, due to their high-fiber, low nutrient diet. The very slow metabolic rate allows koalas to retain food within their digestive system for a long period of time which maximizes amount of extra energy.  
      
Koala is the only mammal other than the Greater Glider and the Ringtail Possum, that can survive only on a diet of eucalyptus leaves. They have a very long caecum (up to 200 cm/6.5 ft) - a fiber digesting organ.  It is part of the intestine, which allows bacteria to break down the otherwise indigestible eucalypti fiber.  The koala is still only able to absorb 25% of the fiber eaten.
     

 

Home | Names & Sizes | Color & Life Span | Food & Nutrition | Breeding | Baby | Physiology  History & Habitat

 

Created by Shelley Pederson
December 16, 2008
This website is part of a school project for the ABT course at the Okanagan College. All of
the information and pictures are from Google and then under the koala bears website.