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Koala skins were widely traded early in the 20th century. Koala conservation organisations, programs and government legislation are concerned with the declining population of koalas (Phascolarctos cinereus), a well known Australian marsupial found in gum trees. The Australian government declared the species as endangered by extinction in 2022.
The koala (Phascolarctos cinereus), sometimes inaccurately called the koala bear, is an arboreal herbivorous marsupial native to Australia. It is the only extant representative of the family Phascolarctidae .
The koala is listed in national conservation legislation as "Phascolarctos cinereus (combined populations of Qld, NSW and the ACT)", previously determined in 2012 to be "a species for the purposes of the EPBC act 1999" . [7] The koala was classified as Least Concern on the Red List, and reassessed as Vulnerable in 2014. [8]
Koala retrovirus (KoRV) [1] is a retrovirus that is present in many populations of koalas. It has been implicated as the agent of koala immune deficiency syndrome ( KIDS ), an AIDS -like immunodeficiency that leaves infected koalas more susceptible to infectious disease and cancers .
Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals.; Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night.
Koala (Phascolarctos cinereus) Marsupials have the typical characteristics of mammals—e.g., mammary glands, three middle ear bones, (and ears that usually have tragi, [3] varying in hearing thresholds [4]) and true hair. [5] There are, however, striking differences as well as a number of anatomical features that separate them from eutherians.
The Koala (Phascolarctos cinereus) is an arboreal marsupial herbivore native to Australia, and the only extant representative of the family Phascolarctidae. The Koala is found in coastal regions of eastern and southern Australia, from near Adelaide to the southern part of Cape York Peninsula .
In the koalas, C. pecorum causes infections in the reproductive systems and urinary tract, as well as pneumonia, infertility, and death. [7] It is considered one of the most important infectious diseases that currently plagues koalas. [8] [9] [10] C. pecorum is the most common chlamydial species to infect koalas and is the most pathogenic. [11]