This arboreal marsupial is smaller & lighter-colored in Northern than in Southern Australia
The 
koala is an arboreal herbivorous marsupial native to Australia and its ... Koalas 
from the northern populations are typically smaller and lighter in colour than their
... [DOC] [TLE] The koala - Australian Wildlife Society [PAR] The koala (Phascolarctos cinereus) is an arboreal herbivorous marsupial native 
to Australia, and ... Koalas from the northern populations are typically smaller and 
lighter in colour than their counterparts in the more southern populations.