Phascolarctos refers to the scientific name for a particular type of animal - the koala bear. While there aren't necessarily synonyms for the word Phascolarctos, there are other names by which the koala bear may be referred to. These include marsupial, gumleaf bear, native bear, or simply koala. The koala bear is a cuddly and adorable creature native to Australia that has become an icon of the country. They are known for their eucalyptus leaf diet and slow movements, spending most of their day sleeping high up in trees. Despite their cute and friendly appearance, koala bears are wild animals and should always be treated with respect and caution.