Hi,

we have a beautiful little girl who is just over 12 weeks, but she
has some odd traits and I wondered if they were normal behaviour!!

The oddest being that a few times a day she goes completely mental
running about the room/garden growling or barking without being
provoked by anything! She is possibly the fastest puppy I have ever
come across so there is no chance of catching her and stopping her
hurting herself.
When she is not darting about she is perfectly calm and loving!

My other concern is that she has already started mounting at 12 weeks
is this normal?
I have had dogs before but never from puppy so any help would
be really appriciated!

Thanks
nici- a confused jack Russell/cairn owner!!