There is no particular name for a male koala.
Normally, yes male koalas are larger than female koalas.
Yes. Male koalas will engage in territorial disputes during breeding season.
Male koalas become quite territorial during breeding season.
There is no specific name for a female koala.
All koalas, both male and female, react similarly when they are in danger. They climb the nearest tree in order to escape the danger.
the koalas family is ...
Not at all. Male koalas will readily breed with numerous different females each season.
Koalas are not bears. Koalas can be male or female, otherwise they could not reproduce.
Yes. Koalas are not monogamous, so once the male has mated, he moves on. The female raises her joey alone.
No only female.
The ears of male and female koalas do not differ in any way. The only way koala ears differ is that koalas from southern parts of Australia have ears which have shaggier fur and tend to be browner in colour.
Koalas make a deep huffy sort of noise and use this to call males.