They are generally not subject to external parasites , other than ticks in coastal areas .
Koalas have few predators ; dingos and large pythons may prey on them , while birds of prey ( such as powerful owls and wedge - tailed eagles ) are threats to young .
Koalas are generally not subject to external parasites , other than ticks in coastal areas .
Koalas have few predators ; dingos and large pythons may prey on them , while birds of prey ( such as powerful owls and wedge - tailed eagles ) are threats to young .